Feature

Technical Developments in 2022

1983
Advertisement with the 3C's mark55

May 2023

COLUMN
Cover image:

Advertisement with the
3C's mark1983

In 1983, SANYO DENKI put an advertisement bearing a large
letter "C" to demonstrate our strong commitment to the fields of"computers," "control," and "communication." Under the slogan of"SANYO DENKI will take on high-tech challenges," all employees
joined forces to face the fierce market competition.
Around that time, then - President Hiroshi Yamamoto wasawarded the Medal with Blue Ribbon in recognition of his many
years of service as a director of the Japan Electrical Manufacturers'
Association. In the following year, then - Vice President Shinjiro
Yokozawa was awarded the Japan Science and Technology
Agency Award for his contribution to the industry through thedevelopment of servo mechanisms including stepping motors. This
series of extreme honors contributed greatly to enhancing thecompany's brand image and reputation.

55
May 2023

SANYO DENKI TECHNICAL REPORT
C

O

N

T

E

N

T

S

SANYO DENKI’s Technologies
for Future Society Senior Executive Operating Officer Yoshimasa Matsumoto

1

Feature: Technical Developments in 2022

3

■ Cooling Systems Division

Highlights of 2022 and New Products Introduction

Honami Osawa .................................... 3

120 × 120 × 38 mm San Ace 120AD 9ADA Type ACDC Fanand San Ace 120AD 9ADAW Type Splash Proof ACDC Fan Masashi Murakami and Others ..... 7
140 × 140 × 38 mm San Ace 140 9RA Type Low Noise Fan

Satoshi Tateyama and Others .... 12■ Power Systems Division

Highlights of 2022 and New Products Introduction

Katsutoshi Yamanaka ......................... 16

Development of 1-Gigabit Ethernet
LAN Interface Card for UPSs Katsuhiro Yoshizawa and Others ............................................................. 18■ Servo Systems Division

Highlights of 2022 and New Products Introduction

Masahiro Yamaguchi .......................... 24

Development of High-Acceleration,
Energy-Saving SANMOTION Linear Servo Motor

Akihiko Takahashi and Others .................... 28

Development of High-Output
SANMOTION F Stepping Drivers

Masao Mizuguchi and Others .......................................................... 33

List of Awarded and Nominated Engineers
for the 71st JEMA Technological Achievement Award in FY 2022

39

Major Patents

40

Internal Recognition: Invention Excellence Award

41

Internal Recognition: Manufacturing Excellence Award

41

Technical Papers Published Outside the Company in General Technical Journals

42

Technical Papers Published Outside the Company

42

SANYO DENKI’s Technologies
for Future Society
Yoshimasa Matsumoto Senior Executive Operating Ofﬁcer
SANYO DENKI was founded in 1927 and will reach its 100th anniversary
in four years.
Over the period of nearly 100 years, we have developed many products.
Although our products are rarely seen by the general public, they havecontributed to the development of society in many ways.
For example, we have developed systems that send air for coolingthings, systems that convert and control energy, and systems for moving,
manufacturing, and conveying things.
We have three business divisions: Cooling Systems, Power Systems, andServo Systems.
Our cooling fans have been used in a wide range of fields, such ascommunication networks, PCs, and data centers.
Our power supply products, which are for converting and controlling electric
power, have been used to provide power backup of communication carrier
networks and computers.
Our servo system products, which is for moving and conveying things, havebeen used in automobile production lines, machine tools, copiers, printers, andhard disk drives.
Likewise, our products are used in numerous applications in various
situations. In convenience stores, for example, they are used for air curtains
in showcases, refrigerators, food warmer showcases, ATMs, POS systems,
copiers, coffee makers, and surveillance cameras.
In hospitals, they are used in CT scanners, MRIs, mammography, blood
analyzers, dialyzers, oxygen concentrators, fundus cameras, powder packing
machines, and medical beds.
In the future, the world will see the emergence of even newer technologies
such as IoT, AI, remote monitoring, and advanced automation.
Many of our products are used in ICT (information and communication
technology) systems and communication networks, on which the abovementioned new technologies are based.
Our products will also contribute to self-driving vehicles and hydrogen fuelcell vehicles, which are expected to come to fruition in the future.
Due to the labor shortages and an aging population, robots will increasingly
be used not only in industrial but also in many other fields such as agriculture,
fishing, nursing care, home applications, advanced medical care, construction,
automatic guided transport, and food services. The more robots become
sophisticated and human-like, the more various types of motors are used inthem to ensure safety. This is where our products can play an active role intheir development.

1

SANYO DENKI Technical Report No.55 May 2023

For example, robots are in demand for automating the harvest of fruits
and vegetables in agriculture and tasks that require craftsmen skills in theconstruction field.
AGVs (automated guided vehicles) and AMRs (autonomous mobile robots)
will further evolve and be introduced into factories and our daily lives.
Equipment involving autonomous control uses a lot of fans.
LiDAR is a type of sensor that uses laser light and can precisely detect theposition, shape, and distance of objects, which is essential for realizing selfdriving vehicles in urban areas.
Roadside assistance radios are a generic term for a system that contains ICT
equipment, sensors, and displays installed on roadsides. They help support
safe driving using 5G communications. For such equipment, cooling fans are
essential.
The energy sector is also facing a major turning point. To mitigate global
warming, some energy control technologies are attracting attention, including
those related to carbon neutrality, demand response, V2H (vehicle-to-home),
and PPA (power purchase agreement). Our multi-function PV inverters andgrid management systems are playing a major role in these fields.
In 2022, we released seven Cooling Systems products, such as air purifiers,
low noise fans, and Splash Proof ACDC Fans; four Power Systems products,
such as high-power UPSs; and four Servo Systems products, such as new AC
servo systems and multi-axis linear servo motors.
With our new series of low noise fans, we achieved noise reduction, energy
savings, and a longer service life. Our new servo series offers user-friendly,
high-performance, and energy-saving features.
In 2021, we strengthened our development capabilities by opening a newwing at our Technology Center in Ueda.
In this issue, we will introduce some of our development achievements: San
Ace 140 (low noise fans), San Ace 120AD (high-airflow Splash Proof ACDCFans), LAN Interface Card, linear servo motor, and high-power stepping
drivers.
We expect that the development of technology will be remarkable in
the future and society will change along with it. Moving forward, SANYODENKI Group will continue to develop new products that support society
through technological advancement and aim to become the world’s top brandas a global company.

SANYO DENKI Technical Report No.55 May 2023

2

Feature: Technical Developments in 2022

Cooling Systems Division
Honami Osawa

Social environments haveundergone major changes amid
heightened awareness of infection
control measures due to the spreadof COV ID -19. People are of ten
restricted from working face -to face, and remote work has become
the new normal. ICT systems are
now playing an extremely importantrole supporting this new mode oflife. ICT equipment such as servers,
storage devices, and routers havebeen constantly improved in speed,
capacity, and performance becoming
denser and generating more heat.
This has raised demand for coolingfans with higher air flow, higher
static pressure, and lower power
consumption.
Furthermore, outdoor equipment
such as base stations, PV inverters,
and digital signage have increasedin performance and functionality,
requiring water-resistant cooling fans

■ Low Noise Fan

DC Fan• 80 × 80 × 38 mm San Ace 80 9RA typeOur 80 × 80 × 38 mm fans are mainly

while maintaining the same coolingu s e d i n 2U s er ver s , a nd we h ave

performance as the products currently

focused especially on increasing thein use.

performance. Meanwhile, power supply

To meet such demands, we developed

and measurement equipment industries

and launched the San Ace 80 9RA typeare now demanding fans with lower

fan, which has the industry’s lowest(1)noise and lower power consumption

noise and power consumption.

(1) Based on our own research as of June 10, 2022, conducted among equally-sized axial
DC fans on the market.

3

with higher cooling performance.
Also, the use of air purifiers inlarge spaces where many people
gather is considered increasingly
important in today’s society.
To meet such market demands,
we developed and launched coolingfans and air purifiers with industryleading performance and reliability.
B el ow is an over v iew of the
products we developed in 2022.

SANYO DENKI Technical Report No.55 May 2023

• 120 × 120 × 38 mm San Ace 120 9RA typeOur 120 × 120 × 38 mm fans areused in a wide range of applications

offering the same cooling performanceas the fans currently used.

such as communication, medical, andTo me et such ma rket dema nd s ,measurement equipment. In these

we developed and launched the San

applications, there is now an growing

Ace 120 9RA type fan, which has thedema nd for fa ns w ith lower noise

industry’s lowest (2) noise and power

and lower power consumption while

consumption.

(2) Based on our own research as of January 27, 2022, conducted among equally-sized
axial DC fans on the market.

• 140 × 140 × 38 mm San Ace 140 9RA typeOur 140 × 140 × 38 mm fans are

running cost reasons.

of ten u s e d i n e qu ipment suc h a s

To me et such ma rket dema nd s ,c om merc ia l a i r c ond it ioner s a nd

we developed and launched the San

medical equipment. Such equipment

Ace 14 0 9RA type fan that has theis used near people and thus requires

industry’s lowest (3) noise and power

quiet fans. Moreover, there is also

consumption. Its details are covered in

h i g h d e m a n d fo r re d u c e d p ower

a separate article in this issue.

consumption for environmental and(3) Based on our own research as of October 27, 2022, conducted among equally-sized
axial DC fans on the market.

■ Splash Proof Fan

DC Fan• 40 × 40 × 20 mm San Ace 40 9WPA type
• 40 × 40 × 28 mm San Ace 40 9WPA typeIn recent years, outdoor equipment

To respond to such market demands,s u c h a s b a s e s t at i o n s , qu i c k E V

we developed and launched the San

chargers, and surveillance cameras is

Ace 40 9WPA type Splash Proof Fan,

increasing in performance, and thiswhich offers the industry’s highest (4)has raised demand for compact water-

airflow and static pressure, as well as

resistant fans with higher performance.

IP68-rated protection(5).

(4) Based on our own research as of June 28, 2022, conducted among equally-sized waterresistant fans on the market.
(5) IP68-rated protection:
The IP Code, or Ingress Protection Code is defined by International ElectrotechnicalCommission (IEC) in the IEC 60529 standard “Degrees of Protection Provided by
Enclosures (IP Code)”.

SANYO DENKI Technical Report No.55 May 2023

4

Feature: Technical Developments in 2022

■ 120 × 120 × 38 mm ACDC Fan• 120 × 120 × 38 mm San Ace 120AD 9ADA type
• 120 × 120 × 38 mm San Ace 120AD 9ADAW type

An increasing number of customers

in factory equipment.

have requested 120 × 120 × 38 mm

To meet such demands, we developed

ACDC Fans with even higher airflow

and launched two fans featuring thethan our current products (9AD typehighest airflow and static pressure in thefans). Also, there has been increasing

industry(6): the San Ace 120AD 9ADA

demand for durable fans with water andtype fan; the San Ace 120AD 9ADAW

dust resistance for use in applications

type fa n, wh ich of fers I P6 8 -rated

where AC fans are preferred, such as inprotection(5). Their details are covered

plant factories and control panels used

in a separate article in this issue.

(6) Based on our own research as of August 24, 2022, conducted among equally-sized
ACDC fans and water-resistant ACDC fans on the market.

■ 160 × 160 × 51 mm ACDC Fan• 160 × 160 × 51 mm San Ace 160AD 9AD type• 160 × 160 × 51 mm San Ace 160AD 9ADW typeOur 160 × 160 × 51 mm AC Fans—designed in our proprietary size—

water resistance, PWM control, and awide input voltage range.

are used in equipment such as control

To meet such market demands, we

panels, industrial equipment, and air

developed and launched 160 × 160

conditioners.

× 51 mm San Ace 160AD 9AD typeIn these applications, there is an

AC DC Fa n s a nd S a n Ac e 16 0A D

increasing demand for features such

9ADW type Splash Proof ACDC Fansas low power consumption, low noise,with IP56-rated protection(7).

(7) IP56-rated protection:
The IP Code, or Ingress Protection Code is defined by International ElectrotechnicalCommission (IEC) in the IEC 60529 standard “Degrees of Protection Provided by
Enclosures (IP Code)”.

5

SANYO DENKI Technical Report No.55 May 2023

■ Air Purifier• San Ace Clean Air

Against the background of increasing

To respond to such market demands,

a i r pol lution a nd the spread of

we have leveraged our accumulated

COV ID -19, there is now a greaterc o o l i n g f a n ex p e r t i s e a n d h i g h -publ ic dema nd for clea n a i r. It is

efficiency air f low channel design

expected that demand for large air

expertise to develop and launch thepurifiers will continue to grow as an

San Ace Clean Air Air Purifier capable

infection control measure in facilities

of sanitizing and filtering the air inwhere many people gather.

large rooms.

AuthorHonami Osawa
Design Dept., Cooling Systems Div.
Works on the design and development of cooling fans.

SANYO DENKI Technical Report No.55 May 2023

6

New Product Introduction

120 × 120 × 38 mm San Ace 120AD 9ADA Type
ACDC Fan and San Ace 120AD 9ADAW Type
Splash Proof ACDC Fan
Masashi Murakami

Noriaki Ogawa

Izumi Onozawa

Toshiya Nishizawa

Hidetoshi Oobayashi

Masato Murata

1. Introduction
Our 120 × 120 × 38 mm ACDC Fans are primarily used incontrol panels of factory equipment. In recent years, control
panels have become smaller and denser, requiring fans withhigher airflow and higher static pressure. Environmental
durability is also essential for ACDC fans for use in harshenvironments such as dusty factory facilities and waterexposed plant factories.
In response to these market demands, we developed andlaunched new products featuring high airflow and high staticpressure: a 120 × 120 × 38 mm San Ace 120AD 9ADA type
ACDC Fan and a San Ace 120AD 9ADAW type Splash
Proof ACDC Fan (hereinafter, “new product” for both).

Fig. 1 120 × 120 × 38 mm San Ace 120AD 9ADA typeThis article introduces the performance and features ofthese new products, as well as the key points of development.

2. Product Features
Figure 1 shows the 9ADA type and Figure 2 shows the
9ADAW type.
The features of these new products are as follows:(1) High airflow and high static pressure(2) Wide AC input voltage range
In addition, the 9ADAW type is the first of our ACDC
Fans to have the following feature.

Fig. 2 120 × 120 × 38 mm San Ace 120AD 9ADAW type(3) IP68-rated* dust and water protection* IP68-rated protection:
The IP Code, or Ingress Protection Code is defined byInternational Electrotechnical Commission (IEC) in the IEC
60529 standard “Degrees of Protection Provided by Enclosures(IP Code)”.

3. Product Overview
3.1 Dimensions
Figures 3 and 4 show the dimensions of the 9ADA typeand 9ADAW type, respectively. Both types are identical inexternal dimensions and mounting dimensions, and they arealso designed to be compatible with our current products.

7

SANYO DENKI Technical Report No.55 May 2023

120 × 120 × 38 mm San Ace 120AD 9ADA Type ACDC Fan and San Ace 120AD 9ADAW Type Splash Proof ACDC Fan

4×ø4.5±0.3
Mounting hole

（6）Power lead wires
22 AWGUL 11347
Other lead wires
24 AWGUL 1430+30
300 0

120±0.8
104.8±0.3

図338±0.5（6）

SANYO DENKI（10）104.8±0.3
120±0.8

Airflow direction

Rotational direction

Fig. 3 Dimensions of 120 × 120 × 38 mm San Ace 120AD 9ADA type (Unit: mm)

4×ø4.5±0.3
Mounting hole38±0.5（6）

Other lead wires
24 AWGUL 1430120±0.8
104.8±0.3

図4Power lead wires
22 AWGUL 11347

（6）

+30
300 0
SANYO DENKI（10）104.8±0.3
120±0.8

Airflow direction

Rotational direction

Fig. 4 Dimensions of 120 × 120 × 38 mm San Ace 120AD 9ADAW type (Unit: mm)

3.2 Specifications
3.2.1 General specifications

Their operating voltage range is 90 to 264 V, and thus they
can be used both with 100 V and 200 V systems.

Tables 1 and 2 show the general specifications of the
9ADA type and 9ADAW type, respectively.

Table 1 General specifications of 120 × 120 × 38 mm San Ace 120AD 9ADA type
Model no.

Operating
PWM
Rated
Rated Rated Rated
Max. airﬂow
voltage Frequency duty
voltagecurrent input speed
range
[Hz]
cycle*[V][A][W] [min-1] [m3/min] [CFM][V][%]

9ADA1201P1G001
9ADA1201G1002
9ADA1201H1002

100
to
240

90
to
264

[Pa]

Sound Operating
Expectedpressure temperature
life
level
range
[h]
[inchH2O] [dB(A)][°C]

Max. staticpressure

100

0.17

9.0

4400

3.9

138

170

0.683

52

20

0.04

1.4

1050

0.93

32.8

15

0.06

25

0.17

9.0

4400

3.9

138

170

0.683

52

50/60
–

0.13

6.6

3800

3.36

119

128

0.514

48

-20 to +70

40000
at 60°C(70000at 40°C)
60000
at 60°C(90000at 40°C)* Input PWM frequency: 25 kHz. Speed is 0 min -1 at 0% PWM duty cycle.
Note: The expected life at an ambient temperature of 40°C is for reference purposes only.

SANYO DENKI Technical Report No.55 May 2023

8

Table 2 General specifications of 120 × 120 × 38 mm San Ace 120AD 9ADAW type
Model no.

9ADAW1201P1H001
9ADAW1201H1002

Operating
PWM
Rated
Rated Rated Rated
Max. airﬂow
voltage Frequency duty
voltagecurrent input speed
range
[Hz]
cycle*[V][A][W] [min-1] [m3/min] [CFM]
[V]
[%]
100
to
240

90
to
264

50/60

100

0.13

6.6

3800

25

0.04

1.4

1050

3.36

0.93 図632.8

119

–

0.13

6.6

3800

3.36

119

Sound Operating
Expectedpressure temperature
life
level
range
[h]
[Pa] [inchH2O] [dB(A)][°C]
Max. staticpressure

128

0.514

48

15

0.06

25

128

0.514

48

60000
at 60°C-20 to +70(90000at 40°C)* Input PWM frequency: 25 kHz. Speed is 0 min at 0% PWM duty cycle.
Note: The expected life at an ambient temperature of 40°C is for reference purposes only.
-1

3.2.2 Airflow vs. static pressure
characteristics［inchH2O］ ［Pa］

0.8

200

0.6

150

0.4

100

0.2

50

100 to 240 VAC, 50/60 Hz

F i g u r e 5 s h ow s t h e a i r f l ow v s . s t a t i c p r e s s u r echaracteristics of the 9ADA1201P1G001 model, Figure

図5
9ADA1201G10
02 and 9ADA1201H10 02 models, andFigure 7 shows the airflow vs. static pressure characteristicsof the 9ADAW1201P1H001 model. The airflow vs. staticpressure characteristics of all models do not change overStatic pressure

6 shows the characteristics comparison between thetheir input voltage range from 100 to 240 V.

9ADA1201G1002

9ADA1201H1002［inchH2O］ ［Pa］

0.8

0

200
100 to 240 VAC, 50/60 Hz

0

1

図7

50

0.6

150

0.4

100
［inchH2O］

0.2

0

50

0
0

9ADA1201P1G001
at 20% duty cycle

1
50

0.6

3

2
Airflow

100

150 ［CFM］

100

150 ［CFM］

Fig. 5 Airflow vs. static pressure characteristics
of 9ADA1201P1G001

［Pa］

150
100 to 240 VAC, 50/60 Hz
9ADAW1201P1H001
at 100% duty cycle and
9ADAW1201H1002

5［m3/min］

4

Airflow

5［m3/min］

4

Fig. 6 Characteristics comparison between
9ADA1201G1002 and 9ADA1201H1002

Static pressure

Static pressure

0

9ADA1201P1G001
at 100% duty cycle and
9ADA1201G1002

3

2

0.4

100

0.2

50
9ADAW1201P1H001
at 25% duty cycle

0

0

1
0

2

3

4［m3/min］

50
Airflow

100

［CFM］

Fig. 7 Airflow vs. static pressure characteristics
of 9ADAW1201P1H001

9

SANYO DENKI Technical Report No.55 May 2023

120 × 120 × 38 mm San Ace 120AD 9ADA Type ACDC Fan and San Ace 120AD 9ADAW Type Splash Proof ACDC Fan

3.2.3 PWM control
The 9ADA1201P1G001 and 9ADAW1201P1H001 models
come with PWM control for controlling the fan speed.

that combined the structure of our Splash Proof DC Fan
with that of our current Splash Proof ACDC Fan, ensuring
the reliability and safety in the event of abnormalities andachieving IP68 protection.

3.3 Expected life
The new products have an expected life of 40,000 hours
for the 9ADA1201P1G001 model and 60,000 hours for the
9ADA1201H1002 and 9ADAW1201P1H001 models at 60°C
(both have a survival rate of 90%, when run continuously at
the rated voltage in free air and at normal humidity).

4. Key Points of Development
The new products achieve higher airflow and higher staticpressure while maintaining the same size as our current
ACDC fan. The 9ADAW type also offers dust and water
protection.
The key features of the new products are described below.

4.1 Impeller and frame design
Figure 8 compares the impeller and frame shapes of the
new San Ace 120AD fan and our current product.
We verified various combinations of parameters such as
the number, length, and angle of impellers and the frame
shape through simulations and evaluations on actual

New productCurrent productFig. 8 Shape comparison between the newand current products

equipment to determine the optimal design for excellent
airflow efficiency.

Motor and control circuit arecoated with resin

4.2 Circuit design
The key was to design a circuit that operates stably whileproviding high airflow, high static pressure, and a wide
range of input voltages despite the size limitation of the PCB
due to the impeller and frame shape.
The target specifications were achieved by improving theefficiency of the ACDC conversion circuit, optimizing theDC voltage that drives the motor, and selecting the best
electronic components for the specifications.

Fig. 9 Live parts of new product4.3 Water-resistant design
Figure 9 shows the live parts of the 9ADAW type.
The 9ADAW type is our first Splash Proof ACDC Fan toachieve IP68-rated protection.
While many of our Splash Proof DC Fans have IP68, thebest protection our existing Splash Proof ACDC Fans could
offer was IP56. This was because enclosing a fan’s motor and5. Comparison of New and Current
Products
5.1 Comparison of airflow vs. staticpressure characteristics

circuit portions completely with resin coating works for DC

Figure 10 compares the airf low vs. static pressurefans but not for ACDC fans since it would undermine thecharacteristics of the new 9ADA1201P1G001 and thereliability and safety of components unique to ACDC fanscurrent product. Compared to the current product, thein the event of abnormalities.

maximum airflow and maximum static pressure have been

We resolved this challenge by devising a new structure

improved by 30% and 102%, respectively.

SANYO DENKI Technical Report No.55 May 2023

10

図10
120 × 120 × 38 mm San Ace 120AD 9ADA Type ACDC Fan and San Ace 120AD 9ADAW Type Splash Proof ACDC Fan

6. Conclusion

180
100 to 240 VAC, 50/60 Hz
160

T h i s a r t icle pre sente d some of t he feat u re s a nd

9ADA1201P1G001

Static pressure [Pa]140

performance of the San Ace 120AD 9ADA type ACDC

Current product 9AD1201H12

120

Fans and San Ace 120AD 9ADAW type Splash Proof
ACDC Fans. Each of the new products achieves higher

102%
increase

100

airflow and static pressure than the current products andcan cool smaller and denser control panels. The 9ADAW

80

type meets the requirement for use in harsh environments

60

thanks to its dust and water protection.

40

by providing products that address market demand.

We will continue to help our customers create new value
30%
increase

20
0

0

1

2
Airflow [m3/min]

3

4

AuthorFig. 10 Airflow vs. static pressure characteristics
comparison between the current productand new 9ADA1201P1G001 (at 100 V, 60 Hz)

Masashi Murakami

Figure 11 compares the airf low vs. static pressure

Noriaki Ogawa

characteristicsof the new 9ADAW1201P1H001 and the
図11current product. Compared to the current product, theDesign Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

maximum airflow and maximum static pressure have been

Izumi Onozawa

improved by 12% and 52%, respectively.

Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

180
100 to 240 VAC, 50/60 Hz
160

Toshiya Nishizawa

9ADAW1201P1H001

Static pressure [Pa]140

Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

Current product 9AD1201H12

120
100

Hidetoshi Oobayashi

52%
increase

Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

80
60

Masato Murata
40

Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

20
012% increase0

1

2
Airflow [m3/min]3

Fig. 11 Airflow vs. static pressure characteristics
comparison between the current productand new 9ADAW1201P1H001 (at 100 V, 60 Hz)

11

SANYO DENKI Technical Report No.55 May 2023

4

New Product Introduction

140 × 140 × 38 mm San Ace 140
9RA Type Low Noise Fan
Satoshi Tateyama

Masashi Miyazawa

Yoshihisa Yamazaki

Osamu Nishikawa

Ryo Shimizu

Hiromitsu Kuribayashi

1. Introduction
Equipment such as commercial air conditioners and medical
equipment used near people requires particularly quiet fans.
Also, energy conservation has become an important issue inrecent years due to the worldwide trend toward CO2 emissions
reduction. We have offered a 140 × 140 × 38 mm 9P type fan(hereinafter, “current product”) since 1999. However, this has
become obsolete and is unable to meet recent customer needs,
especially in noise and power consumption performance.
To meet such market demands, we have developed andlaunched a low-noise San Ace 140 9RA type fan (hereinafter,“new product”).
This article introduces the features and performance of theFig. 1 Appearance of 140 × 140 × 38 mm
San Ace 140 9RA type

new product.

2. Product Features
Figure 1 shows the new product. The new product has lower
noise and lower power consumption than the current productwhile maintaining the same size and cooling performance.
4×ø4.5±0.3
Mounting hole

3. Product Overview
3.1 Dimensions
Figure 2 shows the dimensions of the new product.

140±0.8
124.5±0.3（5）38±0.5（5）（10）

124.5±0.3

140±0.8

Lead wires
24 AWGUL 1007300

Rotational direction+30
0

Airflow direction

Fig. 2 Dimensions of 140 × 140 × 38 mm San Ace 140 9RA type (Unit: mm)

SANYO DENKI Technical Report No.55 May 2023

12

3.2 Specifications

Compared to the current medium-speed models, the newTables 1 and 2 show the general specifications of the new
product, and Figure 3 shows the airflow vs. static pressurehigh-speed and fastest models have achieved an 18% and
33% increase in maximum airflow, respectively.
In addition, the fastest model comes with PWM control.

characteristics.
While the current product lineup offers only two different

The PWM control enables the external control of fan speed

fan speeds (medium-speed and low-speed models), the newaccording to the amount of heat generated by equipment,

product lineup offers four fan speeds (fastest, high-speed,

contributing to reducing noise and power consumption of

medium-speed, and low-speed models) for use in a wide

equipment.

range of markets.

Table 1 General specifications of 140 × 140 × 38 mm San Ace 140 9RA type fastest models
Model no.

Rated
voltage[V]

9RA1412P1G001

12

9RA1424P1G001

24

9RA1448P1G001

48

Sound
Operating PWM
OperatingRated Rated Rated
Max. airflow
Max. static pressure pressure temperature Expectedvoltage
duty
life
current input speed
level
range
range
cycle*[Pa][inchH2O][h][A][W] [min-1] [m3/min] [CFM][dB(A)]
[V]
[°C]
[%]
10.8
100
1.10 13.2 4250
6.0
212
160
0.64
52
to
20
0.09
1.1 1250
1.81
64.0
16.3
0.065
19
13.2
40000
21.6
100
0.53 12.7 4250
6.0
212
160
0.64
52
at 60˚C-20 to +70
to(7000020
0.05
1.2 1400
2.17
76.7
21.5
0.086
22
26.4
at 40˚C)
43.2
100
0.28 13.4 4250
6.0
212
160
0.64
52
to
30
0.04
1.9 1600
2.32
82.0
29.5
0.118
25
52.8

* Input PWM frequency: 25 kHz. Speed is 0 min -1 at 0% PWM duty cycle.

Table 2 General specifications of 140 × 140 × 38 mm San Ace 140 9RA typehigh-speed, medium-speed, and low-speed models
Model no.
9RA1412S1001
9RA1412H1001
9RA1412M1001
9RA1424S1001
9RA1424H1001
9RA1424M1001
9RA1448S1001
9RA1448H1001
9RA1448M1001

13

Rated
voltage[V]

Operatingvoltage
range
[V]

12

7 to
13.8

24

14 to
27.6

48

40.8 to55.2

Rated Rated
current input
[A]
[W]

Rated
speed
[min-1]

0.75
0.43
0.19
0.37
0.22
0.10
0.21
0.13
0.06

3750
3050
2250
3750
3050
2250
3750
3050
2250

9.0
5.2
2.3
8.9
5.3
2.4
10.1
6.2
2.9

SANYO DENKI Technical Report No.55 May 2023

Max. airflow[m3/min] [CFM]
5.3
4.3
3.2
5.3
4.3
3.2
5.3
4.3
3.2

187
152
113
187
152
113
187
152
113

Sound
OperatingExpectedpressure temperature
life
level
range
[h]
[inchH2O] [dB(A)]
[°C]
0.52
49
0.37
43
0.22
35
40000
0.52
49
at 60˚C-20 to +70
0.37
43(700000.22
35
at 40˚C)
0.52
49
0.37
43
0.22
35

Max. static pressure
[Pa]
130
92
54
130
92
54
130
92
54

図3
140 × 140 × 38 mm San Ace 140 9RA Type Low Noise Fan［inchH2O］［Pa］

0.7

180

9RA1448P1G001

160

Static pressure

0.6
0.5
0.4
0.3
0.2
0.1
0

48 VDC

9RA1448S1001

140

9RA1448H1001

120

9RA1448M1001

100

109P1448H101

80

109P1448M101

New product60
40Fig. 4 Comparison of the impeller shapeof the new and current products

200Current product

0
0

1

2
50

3
100

4

5

150

6
200

7［m3/min］［CFM］

Airflow
New productCurrent productFig. 3 Airflow vs. static pressure characteristics
of 140 × 140 × 38 mm San Ace 140 9RA type fans
New product4. Key Points of Development

Current productFig. 5 Frame shape comparisonof the new and current products

In order to reduce noise and power consumption, the new
product has an optimally selected motor and new impeller
and frame shapes designed with an innovative concept
without being constrained by the current product shape.
The key points of development are described below.

4.1 Motor design
For the new product to achieve the target airflow vs.

5. Comparison of New and Current
Products
5.1 Noise level and power consumption
comparison
Figure 6 compares the power consumption and noise

static pressure characteristics, we selected a motor with thelevel of the current and new products at equivalent

optimal output out of the ones used in our existing fans.

cooling performance. At the estimated system impedanceThis enabled the downsizing of the motor, increasing the(equipment ventilation resistance) shown in the figure, thedesign freedom of the impeller and frame.

new product has 9.5 dB(A) lower noise and 24% lower power

In contrast to the unipolar motor drive (two-phase half-

consumption compared to the current product.

wave) of the current product, the new product uses a highly
efficient bipolar drive (single-phase full-wave).

5.2 Environmental impact comparison
Figure 7 compares the CO 2 emissions of the new and

4.2 Impeller and frame design

current products over their life cycles.

To achieve low noise and low power consumption,

The new product produces 41% less CO2 emissions oversimulations were performed to find the optimal combination

its product life cycle compared to the current product thanksof various parameters such as impeller hub diameter,

to its greatly reduced power consumption. In addition,

blade shape, number of blades, blade mounting angle,

its motor has been downsized and its product weight hasframe shape, and stator blade shape and number. Throughbeen reduced from 450 g to 360 g, contributing to waste

eva luations on actua l equ ipment w ith the selected

reduction.

combinations, the optimal shape was determined.
Figures 4 and 5 compare the impeller shape and frame
shape, respectively, between the new and current products.

SANYO DENKI Technical Report No.55 May 2023

14

6. Conclusion

48 VDCSound
pressure level6055This article introduced the features and performance of50

9.5 dB(A)reduction45
40

the low-noise San Ace 140 9RA type fan.
The new product has lower noise and lower power
consumption than the current product while maintainingPowerconsumption

35

9
8
7

24%
reduction［inchH2O］ ［Pa］

Static pressure

0.4
0.3

6
5

Power consumption [W]Sound pressure level [dB(A)]140 × 140 × 38 mm San Ace 140 9RA Type Low Noise Fan

Static pressure

100

Estimated system impedancepressure than the current product.
This contributes to reducing noise, saving energy, andimproving the performance of equipment used near people
such as commercial air conditioners and medical equipment.
It also reduces total CO2 emissions over the equipment life
We will continue developing products that promptly meetmarket demands to contribute to creating new value for our60
Estimated
operating point

40

0includes models with higher airflow and higher static

cycle, contributing to a reduction in environmental impact.

80

0.2
0.1

the same cooling performance. In addition, the lineup

customers.

20
0

Author
0

1

2

0

50

3
100
Airflow

4

5 ［m3/min］

150

［CFM］

Satoshi Tateyama
Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

Current product 109P1448H101
New product 9RA1448H1001

Fig. 6 Noise level and power consumption
comparison

Masashi Miyazawa
Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

Yoshihisa Yamazaki
Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

250

CO2 emissions [kg]200
41% reduction
150
100

Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

216 kg
128 kg50
0

Ryo Shimizu
Current product109P1412H101

New product
9RA1412H1001

Fig. 7 CO2 emissions comparison based on our life
cycle assessment calculation software(40,000-hour continuous operation in free air)

15

Osamu Nishikawa

SANYO DENKI Technical Report No.55 May 2023

Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

Hiromitsu Kuribayashi
Design Dept., Cooling Systems Div.
Works on the development and design of cooling fans.

Feature: Technical Developments in 2022

Power Systems Division
Katsutoshi Yamanaka

2022 saw the rapid spread of
the Omicron variant of COVID-19
b u t w a s a l s o a ye a r w h e n we
implemented a new way of dealing
with infection balancing infection
control and economic activity. As
society has grown accustomed toliving with COVID-19, work-fromhome and teleworking have becomea n a c c e p te d p r a c t i c e i n m a ny
companies.
The manufacturing industr y isobserving a significant growth insmart factories leveraging digitaltechnologies such as IoT and AI,
exploring the use of data obtained
from IoT devices and sensors.
Meanwhile, the Japanese
government has announced its planto achieve carbon neutrality, or netzero greenhouse gas emissions,by 2050. This has raised demand
for more efficient power supply
devices.
It is against this backdrop that thePower Systems Division developed

the following new products in 2022.
For uninterruptible power supplies(UP Ss), we developed a small capacity online UPS SANUPS A11N
and a medium-capacity online UPS
SANUPS A23D.
For UPS management, wedeveloped the 1-Gigabit Ethernet
LAN Interface Card for UPSs.
This article provides an overview
of each of these products.

■ Development of the SANUPS A11N online UPS
T he SA NUPS A 11N is a double
conversion online UPS capable of parallel

be performed using one unit as a spare,serving as an emergency power source

further increasing reliability.

during a natural disaster.

redundant operation. The input/output

The product supports a wide input

voltage is single-phase 2-wire and can bevoltage range and can continue to supply

set to either 200, 208, 220, 230, or 240 V.

power without switching to battery power

It is available in two types. The single

even if the input voltage fluctuates within

unit type has a single 5 kVA base unit

a range from -20 to +15% at full load levelwith AC output outlets on the back of the(or -40 to +15% at low load levels). Thisunit, while the parallel connection typeallows it to be used even in regions wherecomes with a power distribution unit andthe power supply is unstable.

is scalable up to 20 kVA by combining up
to four base units in parallel.
The parallel connection type uses our“fully autonomous control” technology to

It also uses a 3-level inverter for the
inverter circuit to achieve an industryleading(1) conversion efficiency of up to
95.1%.

control the parallel operation of each unit.

Even when grid power is unavailable

As long as there is an unused capacity

and the UPS is not operating, the batteryof one unit (5 kVA) extra for the load,

cold start function allows the UPS to be

the parallel redundant operation canstarted by battery to supply AC power,

Fig. 1 SANUPS A11N parallel
connection type, 20 kVA model(1) Based on our own research as of June 30, 2022, conducted among online UPSs on the market.

SANYO DENKI Technical Report No.55 May 2023

16

Feature: Technical Developments in 2022

■ Development of the SANUPS A23D online UPS
The SANUPS A23D is an online UPS

and degradation.

with 3-phase 3-wire 200 V input/output

It also comes with a new “walk-in

voltage. The lineup is available in output

feature.” When used in an emergency

capacities of 30, 50, 75, and 100 kVA.

power supply system that combines

The product supports an input/output

an emergency generator and U PS,

voltage of 210 and 220 V without athis feature suppresses sudden output

transformer (set at the time of shipment).

voltage fluctuations in the emergency

T his U PS achieves a conversion

generator during power restoration,

efficiency of up to 95%, delivering a 2%

a l low i ng cu stomer s to bu i ld a n

increase from our current product. Thiseconomical emergency power supply

suppresses power consumption andsystem by not requiring an unnecessarilyheat generation, reducing running costs

high capacity of a generator.

and CO2 emissions.

We revamped the part selection

The product can also be operated

and improved efficiency so that thewithin a wide AC input voltage range.

main replacement parts—electrolytic

T h is reduc es t ra nsfer s to bat ter ycapacitors and cooling fans—do not

power under unstable input power

need to be replaced for 15 years. Thisconditions, minimizing battery wear

helps reduce part replacement costs.

Fig. 2 SANUPS A23D
100 kVA model■ Development of 1-Gigabit Ethernet LAN Interface Card for UPSs
Our LAN Interface Card is a UPS

highly versatile and is capable of shutting

Details on the 1-Gigabit Ethernet

management product used in a UPS for

down the latest servers and network

L A N Interface Card for U PSs aremonitoring the UPS status in real time

devices that have enhanced security.

covered in a separate article in this issue.

and managing the UPS remotely.

Wireless LAN support has also been

As IoT advances, there is a growing

added to enable users to monitor UPSs

demand for server power management

using their smartphones and tablet PCs

that supports faster communication andeven in environments without wired

increased security. In response, the new

LAN support, greatly improving usermodel supports 1-Gigabit Ethernet for

convenience. Finally, this productuse in various network environments.

also features automatic log storage

I n add it ion to S SH , t h i s c a rdcapability that allows UPS operatinga l s o s u p p o r t s R E S T A P I (3) a s a

information to be easily copied bycommunication protocol for shutting

simply plugging in a USB flash drive.

(2)

down servers. This protocol is simpler yet

Fig. 3 LAN Interface Card

(2) SSH (Secure Shell) is a communication protocol secured by data encryption.
(3) REST API is a communication protocol used in web communication.
Note: The company names and product names listed in this article are the trademarks or registered trademarks of their respective owners.

AuthorKatsutoshi Yamanaka
Design Dept., Power Systems Div.
Works on the development and design of power supply units.

17

SANYO DENKI Technical Report No.55 May 2023

New Product Introduction

Development of 1-Gigabit Ethernet
LAN Interface Card for UPSs
Katsuhiro Yoshizawa

Yutaka Kato

Kiyoshi Mizuguchi

Hironori Ogihara

Yuki Hara

Noriyuki Kawashima

1. Introduction
Our SANUPS LAN Interface Card (hereinafter, “LANAkihiro Tsukada

the same dimensions as those of the current models so that it
can be installed in our current UPSs.
Figure 1 shows the new model (Model no.: PRLANIF031).

Interface Card”), installed in uninterruptible power supplies(hereinafter, “UPSs”), has been used not only in the ICT
equipment market but also in the industrial equipment
market for UPS monitoring and automatic server shutdown
in the event of an outage.
We have received various requests from customers
regarding the use of such cards with UPSs. There have been
demands in the ICT device field, for example, for UPSs toconnect to Gigabit Ethernet and have advanced security
features.
At the same time, we have received requests from theindustrial equipment market, such as additional support
for UPS monitoring via connections other than a wired
LAN and UPS log acquisition that does not require a PC
connection.

Fig. 1 LAN Interface Card (Model no. PRLANIF031)

To meet these requests, we have developed a new model ofthe LAN Interface Card (hereinafter, “new model”).

The following functional enhancements have been madeto the external interface of the new LAN Interface Card.

This article provides an overview of the new model and•introduces its features.

T he wired LAN communication supports 1-Gigabit
network communications, which is faster than current
models.

2. Product Overview•

devices. This allows the user to connect a Wi-Fi adapter
and USB flash drive.

The new model has the following new functions added
to our current models to meet various requests from•

customers.
•

1-Gigabit Ethernet•

Wireless LAN communications•

Log storage on a USB flash drive•

Enhanced server shutdown

To realize these functions, the new model has all-newA USB port has been added for the connection of USB

A n EXT port has been added for extension, whichallows temperature/humidity sensors and Modbus
RTU devices to be connected at the same time via an
extension cable.

•

A USB Type-C port has been added as a setup port tobe used for direct configuration from a PC.

Figure 2 shows the external interface of the front panel.

hardware, such as a faster CPU, increased on-board memory
capacity, and additional interfaces.
At the same time, the new model has been designed withSANYO DENKI Technical Report No.55 May 2023

18

3.2.1 Wireless LAN communications
Connecting a Wi-Fi adapter to the USB port enables
wireless LAN communications in either station modeor access point mode. Table 2 describes each mode ofoperation.

Fig. 2 LAN Interface Card front interface

Table 2 Wi-Fi operation modes of LAN Interface Card
Operation mode

In terms of software features, the new model complies
with new security standards for ICT devices, for which a

Station mode
Access point
mode

Connects a smartphone or tablet
client device to a LAN Interface Card
host device.

high level of security is required.
The current models have traditionally been equippedwith the SSH (Secure Shell), a protocol to remotely operate

Description
Connects a LAN Interface Card client
device to a host device, such as awireless LAN router.

network-connected devices through secure communications
by encrypting network communications, to perform
shutdown of servers and network devices.

When operating in station mode, you can remotely

The new model is equipped with the OpenSSH* with

monitor the LAN Interface Card even in environments

enhanced security over the current models and thus can bewithout LAN cables, as long as there is a nearby wirelesssecurely used even in customer environments requiring a

LAN base station such as a Wi-Fi router.

high level of security.

When operating in access point mode, you can directly
connect to the LAN Interface Card from a smartphone tocheck the UPS status or change the LAN Interface Card

* OpenSSH is an open source implementation of SSH.

settings even in environments without a nearby wireless

3. Features

LAN base station such as a Wi-Fi router.

3.1 1-Gigabit Ethernet

3.2.2 Log storage on a USB flash drive

T he new mo del enables 10 0 0 M bp s net work

In the case of abnormalities, it is essential to analyze

communication, which was not supported by the current

information such as UPS and LAN Interface Card event logs

models.

as well as the measurement data of the UPS, temperature/

This realizes to connect the LAN Interface Card directly
to a network device through Gigabit Ethernet, enabling
downloading of collected data and uploading of setting
value data at high speeds.

humidity sensors, and Modbus-compatible devices.
With the current models, this information has been only
obtained over a network using a PC.
However, the new model automatically creates a local

Table 1 shows a comparison with the current models.

backup of log and measurement data by simply connecting a
USB flash drive to the USB port without using a PC.

Table 1 Comparison of network communication
supportStandards

Communication
speed

Current
model

New
model

10Base-T

Max. 10 Mbps✓✓

100Base-TX

Max. 100 Mbps✓✓

1000Base-T

Max. 1000 Mbps–✓(✓: supported, –: not supported)

3.2 USB port
The new model comes with a USB Type-A port to extend
its functionality by connecting USB devices. By connectinga Wi-Fi adapter or USB flash drive to the USB port, wireless
LAN communications and log storage on USB flash drives
can be realized.

19

SANYO DENKI Technical Report No.55 May 2023

Table 3 lists the obtainable data.

Development of 1-Gigabit Ethernet LAN Interface Card for UPSs

Table 3 Data that can be saved on a USB flash driveand HCI* devices that virtualize network infrastructure in

Description

software. With virtual servers and HCI devices, shutting

Setting values

LAN Interface Card setting values

down computers require complex procedures, and UPSs are

System log

LAN Interface Card event log

also used for power backup of these devices.

Aggregate data
(daily)Aggregate data of hourly meanvalues, minimum values,
and maximum values

Aggregate data
(monthly)

Aggregate data of daily meanvalues, minimum values,
and maximum values

Aggregate data
(yearly)

Aggregate data of monthly meanvalues, minimum values,
and maximum values

Collected data
(UPS)

Measurement data for up to one
month (UPS)

Collected data
(temperature/humidity sensors)Same as above (temperature/humidity sensors)

Collected data
(Modbus device)

Same as above (Modbus device)

SSH encrypts communications with remote devices to

Maintenance data

UPS event log, failure log, etc.

prevent data tampering and eavesdropping, and efforts

Items to save

The new model provides extended functions for handlingcomplex server shutdown procedures in high-security
environments.
* HCI stands for Hyper-Converged Infrastructure. It integrates thefunctions of servers, storage devices, and network devices intoa single machine using virtualization software technology.

3.4.1 Enhanced SSH functionality
The current models feature SSH (Secure Shell) for
shutting down servers, which enables remote devices to beconnected and shut down safely.

have constantly been made to enhance its security level by
improving the encryption algorithm.

3.3 Temperature/humidity sensors
and Modbus devices can be connected
and monitored

The current models use commercial SSH software, whichusually takes a long time to import encryption algorithm
updates.

With the current models, temperature/humidity sensor

The new model supports OpenSSH. OpenSSH is now theand Modbus RTU-compatible devices cannot be connectedde facto standard implementation of SSH and widely used inor monitored at the same time.

servers where a high level of security is required.

In contrast, the new model can connect to temperature/

When using SSH, there may be differences between thehumidity sensors and Modbus RTU-compatible devices

SSH encryptions supported by the LAN Interface Cardat the same time thanks to the added EXT port via an

and the customer’s environment. In such a case, the current

extension cable.

models require our customers to change their SSH encryption

This enables monitoring of the air conditioning in thesettings to match those of the LAN Interface Card.

area where a UPS is installed by detecting temperature andIn contrast, thanks to the OpenSSH support, the newhumidity conditions and capturing the operating status of amodel can be used without our customers having to change

Modbus-compatible air conditioner.

their settings or compromise the level of their security.

3.4 Enhanced server shutdown

3.4.2 REST API-based server shutdown

UPSs are widely used in server rooms and data centers

Currently, many server manufacturers provide their

to provide power backup for ICT equipment. In such

R E ST A PI s,* wh ich a re appl ic at ion prog ra m m i ng

applications, our LAN Interface Card plays a role in safely

interfaces that use the HTTP protocol. By using an API,

shutting down servers and network equipment in the event

users can remotely manage their servers.

of a power failure or other abnormality.

T he new model enables users to shut dow n thei r

Currently, ICT equipment has been used in highly secure

servers using the REST APIs of their respective server

network environments and the UPSs used for power backup

ma nu factu rers. T he new model of fers more secu reof such equipment are also required to operate in highly

communication with servers because REST APIs use

secure environments.

HTTPS, which is a more secure version of HTTP.

In conventional server environments, servers, storage,
network devices, and other network infrastructure had
their own hardware. In recent years, however, there has
been increasing use of virtual servers that integrate and run* REST API stands for REpresentational State Transfer Application
Programming Interface. It defines the rules for exchanging datausing the HTTP protocol.

multiple operating systems within a single physical server

SANYO DENKI Technical Report No.55 May 2023

20

Fig. 3 Setting screen of computer shutdown

3.4.3 Enhanced script execution

where two UPSs are used for redundancy. The redundantWith virtual servers and HCI devices, shutting down or

UPS control shuts down the servers when power cannot be

starting computers require users to follow a number of steps,

supplied normally from either of the UPSs due to power

making the settings on the current models complicated.

failure. With this function, UPS operation can continue

The new model provides an interface for configuring therequired steps to shut down and start up computers. Users
can configure up to 10 steps using a web tool.

without shutting down the servers if either of the UPSs isable to continue supplying power normally.
The current models also feature the UPS linkage function,

Figure 3 shows the computer shutdown settings screen. In

but they use this control with LAN Interface Cards in UPSs

the screen, there are five computers registered for shutdown.

communicating via a network. This is problematic because

It shows that the shutdown sequence is currently in progress.

a linkage control cannot be performed normally when

The shaded squares indicate the step where a shutdown

network devices such as hubs and network switches areis performed. The 1st and 2nd devices from the top havestopped due to power failures.

their shutdowns set to Step 1. The 3rd device has it set to

In contrast, with the new model, the UPS linkage function

Steps 2 and 3. The 4th device and the 5th device have their

does not rely on network-based communication. Instead,

shutdowns set to Step 3 and Step 4, respectively.

it uses CAN (Controller Area Network) communication

When a shutdown sequence starts, the action registeredby connecting multiple LAN Interface Cards directly withto Step 1 is executed first. When all Step 1 actions of eachcables. This ensures synchronized and redundant operation

device are completed, it moves on to Step 2 and continues toof UPSs without being affected by external factors such as

execute in sequence up to Step 10.

power failures.

With virtual servers and HCI devices, shutting down
or starting computers require a number of steps to be

3.6 IP address can be changed from UPS

performed in a specified order. The new model, with

When using the new model with our SANUPS A23D orenhanced functions, allows users to manage shutdown

SANUPS A11N UPS, its IP address (IPv4 address) andsettings with ease.

settings can be checked and changed from the UPS control
panel.

3.5 UPS linkage function
The new model features a UPS linkage function forsynchronous/redundant control of multiple UPSs.
The UPS synchronous control synchronizes the stop/starttiming for multiple UPSs. In other words, when one of the
UPSs in synchronous control is stopped, the other UPSs
are stopped at the same timing as well as the subsequent
shutdown of devices.
The redundant UPS control is used in server environments

21

SANYO DENKI Technical Report No.55 May 2023

This makes the introduction of the new model easy since
the network settings can be done directly from the UPS
control panel. It is also easy to check network information.
Figure 4 shows the IP address settings screen on the
SANUPS A23D.

Development of 1-Gigabit Ethernet LAN Interface Card for UPSs

Table 4 Specifications of the LAN Interface Card
Items

Fig. 4 Screen example of IP address settings
for the SANUPS A23D

PRLANIF031

Dimensions

105 (W) × 125 (D) × 23.5 (H) mm

Operatingenvironment

Temperature: -25 to 60°C
Humidity: 0 to 90% RH (noncondensing)Transmission speed: 1000/100/10 Mbps
(auto-negotiation)
LAN
Transmission method (full-duplex/halfcommunication
duplex): Automatic
Auto-MDIX feature• Automatic start-up/shutdown ofcomputers (SSH, REST API, Telnet)• Shutdown of computers in power
redundancy• UPS synching (up to 5 UPSs)• Automatic computer startup at power
restoration• Scheduled operation• UPS status display (supports ourHTML-based Web Tool, SSH and
Telnet)• SNMP agent (RFC1628, JEMA-MIB)• Sending/receiving emails• NTP (Network Time Protocol)• Downloading and uploading UPS
setting values• Test functions (script execution,
sending emails, sending SNMP traps,
shutdown)• Notification of events to the syslog
server• Measurement deviation monitoring(UPS internal information, Modbus
measurements, temperature/humidity
sensor measurements)• Statistical graph display (UPS internal
information, Modbus measurements,
temperature/humidity sensor
measurements)• Modbus master/slave functions• Status measurement monitoring of
Modbus slave devices (up to 16 items)• Environmental monitoring bytemperature/humidity sensors (up to
16 items)• Daily/monthly/yearly report generation(UPS internal information, Modbus
measurements, temperature/humidity
sensor measurements)• Measurement data aggregation(UPS internal information, Modbus
measurements, temperature/humidity
sensor measurements)• Wireless LAN support• Log storage on a USB flash drive• Latest firmware update

3.7 Card edge connector
Conventionally, it required a dedicated cable to connect
a UPS and LAN Interface Card, however, the new model
comes with a card edge connector. (Refer to Figure 5 to see
the card edge connector of the LAN Interface Card.)

Functions

Card edge connector
Fig. 5 Card edge connectorof the LAN Interface Card

This makes it easy to connect the new model to a UPS
that has a card edge connector; simply inserting it into the
UPS's expansion slot will do it. From now on, all the UPSs
we develop will be equipped with an card edge connector,
eliminating the need for a UPS connection cable.

4. Specifications
Table 4 shows the specifications of the new model.

Ratings and standards

Model no.

External
Modbus TCP, Modbus RTU*, 1-Wire*,
communication
CAN*
protocols
Supported
protocols

TCP/IP, UDP, DHCP, SNMP (v1, v2c, v3),
HTTP, HTTPs, Telnet, SSH, FTP, FTPs,
SMTP (over SSL/TLS), POP3 (over SSL/
TLS), NTP

* When the EXT connector is used

SANYO DENKI Technical Report No.55 May 2023

22

Development of 1-Gigabit Ethernet LAN Interface Card for UPSs

5. Conclusion
This article provided an overview of the new LAN
Interface Card and introduced its features.
The development of this product involved full-scale
upgrading of hardware and software, and therefore it will

AuthorKatsuhiro Yoshizawa
Design Dept., Power Systems Div.
Works on the development and design of power supplies andmonitoring devices.

serve as a base for our future power management products
and monitoring products of the Power Systems Division.

Yutaka Kato

Moving forward, this will enable us to respond flexibly to

Design Dept., Power Systems Div.
Works on the development and design of power supplies andmonitoring devices.

new requirements when developing products.
In the future, we expect that advanced security measures
will be required not only for ICT systems but also forindustrial systems. In this regard, we are confident that our

Kiyoshi Mizuguchi

customers will be able to use this product with peace of mind.

Design Dept., Power Systems Div.
Works on the development and design of power supplies andmonitoring devices.

Server management technologies in ICT systems are
rapidly advancing today. With the development of our new
LAN Interface Card, we will continue to work to keep pacewith the tide of technological innovation, swiftly develop

Akihiro Tsukada

products to meet market demands, and continue offering

Design Dept., Power Systems Div.
Works on the development and design of power supplies andmonitoring devices.

products that satisfy customers.
The company names and product names listed in this article are thetrademarks or registered trademarks of their respective owners.

Hironori Ogihara
Design Dept., Power Systems Div.
Works on the development and design of power supplies andmonitoring devices.

Yuki Hara
Design Dept., Power Systems Div.
Works on the development and design of power supplies andmonitoring devices.

Noriyuki Kawashima
Design Dept., Power Systems Div.
Works on the development and design of power supplies andmonitoring devices.

23

SANYO DENKI Technical Report No.55 May 2023

Feature: Technical Developments in 2022

Servo Systems Division
Masahiro Yamaguchi

SA NYO DENK I contributes tosociet y by developing productsthat enhance the per formance,
quality, and reliability of customer
equipment, while optimally solving
customer challenges and creating
new value.
In this article, we present the new
products we developed in 2022: an
AC servo system product, a linear
servo motor product, and stepping
driver product, with their featuresa n d t h e i r c o nt r i b u t i o n s to o u r
customers and society.
To begin with, we developed the
SANMOTION G AC servo systems
with rated outputs ranging from
30 W to 1.5 kW. This new servo
system is an all-new upgrade of theconventional SANMOTION R servo
system with a new motor, holding
brake, encoder, and servo amplifier,based on the concept of being“powerful” and “friendly.”The “powerful” refers to its highperformance and high reliability.
While featuring greatly improved
servo performance and reliability,t h e n ew p ro d u c t c a n b e u s e dwith confidence even in harshenvironments. In addition to being
compact, lightweight, and highly
efficient, it is also “friendly” bybeing both user-friendly and ecofriendly.
N ex t , fo r l i n e a r s e r vo m oto r
products, we developed the new
SANMOTION linear servo motorthat offers high acceleration andenergy savings.
The new product achieves highacceleration motion by improving
its thrust characteristics and offers
better efficiency by reducing motor
loss. Therefore, it contributes toimproved productivity by increasing
the speed of equipment and thehigh precision of equipment by

reducing the temperature rise of
equipment.
With our stepping driver products,
we have developed t wo new
stepping driver models (high-powermodel and basic model) for 2-phaseand 5-phase stepping systems, for a
total of four new models. The highpower models can drive motors
with high torque and contribute toshortening equipment cycle times.
The basic models were designed
to be an easy replacement for ourcurrent models and to be morecompact and light weight. Bothmodels feature significantly reduced
vibration during motor rotation.
T he new products contributesignificantly to higher performanceand lower vibration of equipment.
Below are the overviews of thesenew products and their features.

■ SANMOTION G AC servo system
based on the concept of being

Ser vo systems are an i mpor tantequipment to mitigate global warming.

element in equipment that have a great

In response to these expectations, we

impact on the performance, quality,

developed the new SANMOTION G

The “powerful” refers to its highand reliability of the equipment. The

AC ser vo system. T h is new ser vo

servo performance and high reliability

role is becoming more important insystem is an all-new upgrade of thefor use with peace of mind in various

i ndustr ia l development to resolve

conventional SANMOTION R servo

regions and environments. What wechallenges for the global environment,

system, w ith ever y th ing upgradedmean by “friendly” is that the products u c h a s i mp rove d ef f i c ien c y a ndincluding the servo motor, holding

is designed to be energy-efficient,resou rc e c on ser vat ion of elect r ic

brake, encoder, and servo amplifiercompact, lightweight, environmentally“powerful” and “friendly.”

SANYO DENKI Technical Report No.55 May 2023

24

Feature: Technical Developments in 2022

friendly, and ease of use for customers.
Its servo motor lineup comprises a

2. High environmental
durability

5. Friendliness to operators

total of 37 models: 13 low-inertia models

The vibration resistance was tested

ranging from a 40 mm sq., 50 W model

under harder acceleration conditions

It provides high-precision system

to a 100 mm sq., 1.5 kW model, andthan before: 50 m/s2 for the servo motor

analysis measurements for frequency

24 medium-inertia models ranging fromand 6 m/s2 for the servo amplifier. We

analysis with sinusoidal commands.

a 40 mm sq, 30 W model to a 130 mm

also developed a highly reliable holding

Its advanced tuning function, whichsq., 1.2 kW model. Its servo amplifier

brake that has less friction material

measu res mach i ne cha racter istic s

lineup comprises a total of 21 models:

wear and maintains holding torquea nd adju st s pa ra meter s ba sed on

three 100 V models with output current

even in high-temperature and high-the appl ication, prov ides opti ma lcapacities of 10, 20, and 30 A, four

humidity conditions. In addition, theadjustments and reduced start-up time.

200 V models with that of 10, 20, 30, andoperating altitude of the product has

50 A, and the rest are other models withalso been extended to 2000 m.

variations in servo motor combinations
and host controller interface.
Their features are as follows.

6. Friendliness to customers
T he s er vo mot or ’s f l a n ge s i z e,

3. Enhanced maintainability

mounting dimensions, and output shaft

T h i s produc t of fer s f u nc t ion s

shape, as well as the servo amplifier’sthat are convenient for preventive

dimensions and mounting dimensions

1. Powerful servo performance

maintenance of components including

are highly compatible with those of

T h e s e r vo m o t o r h a s a c h i eve dholding brakes, electrolytic capacitors,

ou r cu r rent products. T h is makesd ow n s i z i n g a n d h i g h e r o u t p u t s .

cooling fans, and relays. Based on thisreplacement of our products currently

Downsizing was achieved by optimizing

information, users can plan overhauls.

used in customers’ equipment with thethe electromagnetic field structure of

We also added functions to help

the motor and reducing the size of thediagnose the operation environment

encoder. In addition to being compactof the ser vo system, such as mainand lightweight, the motor winding wascircuit rectification voltage monitoring

optimized, increasing the maximum

and control power supply frequency

speed to 650 0 min -1 and achieving

mon itor i ng. By i nve st igat i ng t hehigher output power.

operating environment, these functions

The servo amplifier has an improved

can help our customers diagnosing their

voltage utilization rate at high speed,environment and identify the cause ofwhich extended the output range of theabnormalities.

servo motor.
We also increased the frequency
re sp on s e of t he sp e e d c ont rol to

25

not feel anxious by the operating noise.

4. Friendliness to theenvironment

3.5 kHz by speeding up the control

The servo motor has up to 9% higher

cycle and improving the torque control.

efficiency and up to 48.3% lower CO2

Furthermore, we greatly reduced theemissions over the current products

positioning time by compensating for

thanks to its optimized electromagnetic

the effects of friction and gravity, which

field design, improved winding fillhinder settling.

factor, and use of low-loss materials.

T he high-resolution batter y-less

The servo amplifier features a mode

absolute encoder with a maximumthat reduces noise from the switching

2 7-bit resolut ion prov ides st able,

frequency. It is suitable for use inrepeatable motion and high-precisionenvironments that require low noise

positioning.

such as hospitals so that patients would

SANYO DENKI Technical Report No.55 May 2023

SANMOTION G very easy.

■ High-acceleration, energy-saving SANMOTION linear servo motor
Linear servo motors provide linear

2. Energy savings

motion without using a ball-screw

The newly designed mover structure

based “rotation-to-linear conversion”

and improved winding fill factor led

mecha n ism, g reatly helpi ng ma ke

to reduced motor losses and improved

equipment faster and more precise.

efficiency. Furthermore, the reduced

Our linear servo products are also usedmotor losses reduce the motor’s heatin lithography equipment and chip

generation, which in turn, lowers themounters where the above-mentioned

temperature customer equipment. The

strength can be leveraged.

reduced motor temperature minimizes

We developed th is new productt h e r m a l ex p a n s i o n i n t h e m o t o r

a i m i ng to help ma ke customer

mounting mechanism in the equipment,

equipment faster and more precise. The

keepi ng the h ig h precision of thefeatures of this product are as follows.

equipment.

1. High-acceleration motion

These features make this product

The newly designed mover structure

ideal for semiconductor manufacturing

and optimized magnetic circuit led toequipment, lithography equipment,

improved thrust characteristics, enablingand conveying machines, helping makehigh-acceleration motion. Compared tothem faster and more precise.

our current models, no-load acceleration
has been increased by 9%. Capable

For more information, refer to theof high-speed drive, the new product“New Product Introduction” section of

can shorten the cycle time of customer

this Technical Report.

equipment and improve its productivity.

SANYO DENKI Technical Report No.55 May 2023

26

Feature: Technical Developments in 2022

■ High-output SANMOTION F stepping drivers
It is not possible to make industrial

demonstrating improved efficiency overw it h P C - b a s e d f u n c t i o n s . W h e nequipment faster and more precise

the current models. Therefore, they canconnected to a PC via a dedicatedwithout improving its motor system.

contribute to smoother operation andtool, users can set advanced operation

Therefore, to contribute to shorter

energy savings of equipment.

parameters, monitor the internal status,
use a preventive maintenance function,

cycle time and smoother operation ofcustomer equipment, we developed

2. Easy replacementcompact, high-power stepping drivers

The drivers come with a new function

enable users to easily customize thefeaturing high-speed drive and smallthat allows control of both 2-phase andfunctions to suit their equipment andspeed variations.

5-phase motors with the same resolution

check the operating status.

The new stepping drivers are available(step resolution compatibility). Thisin a total of four models: a high-powerfunction enables easy replacement

For more information, refer to themodel and a basic model for both

between 2-phase and 5-phase systems“New Product Introduction” section of

2-phase and 5-phase. The high-power

without changing the program of thethis Technical Report.

models feature high-torque drive of

host controller.

a motor. The basic models maintaincompatibility with our current models.
Their features are as follows.

3. Various useful safetyfunctions
The new drivers are equipped with

1. Compact, high power,
and low vibration

an enhanced self-diagnosis at poweron a nd st at u s mon itor i ng du r i ng

Both models can drive motors with

operation to ensure safe use. When anhigh torque while being compact andabnormality is detected, the drivers willlightweight. In particular, the high-issue a warning and stop the system. In

power models have 1.5 to 2.7 times

addition, they can also display warnings

higher torque at high speeds than ourat the first sign of power supply voltage

current models, greatly speeding up theand temperature issues.

equipment.
A lso, both models have sma l ler
speed va r iat ions du r i ng rotat ion,

4. PC-based functions
The high-power models are equipped

AuthorMasahiro Yamaguchi
Servo Systems Div.
Works on the design and development of servo motors.

27

and check alarm logs. These functions

SANYO DENKI Technical Report No.55 May 2023

New Product Introduction

Development of High-Acceleration,
Energy-Saving SANMOTION Linear
Servo Motor
Akihiko Takahashi

Hiroyuki Sato

1. Introduction
Linear servo motors are increasingly demanded inapplications that require high-speed operation and highprecision positioning, such as surface mounters andlithography equipment. In recent years, they are growingly

LC
Armature coil(mover)used in medical devices for higher precision. The advantageHMof using them is that they can easily achieve high speed
and high precision by directly driving equipment linearlyw ithout using a rotar y-to -linear motion conversion

Magnet rail
(stator)mechanism such as a ball screw.(1)To i mprove the speed a nd prec ision of customere q u i p m e nt , i t i s e s s e nt i a l t o i m p r ove t h e t h r u s t
characteristics of the linear servo motor that drives theequipment while also reducing the motor size, weight, andWM

energy usage (loss reduction). In addition, the motor size

Fig. 1 Appearance of new productaffects the size and mass of the parts used in the motor
mounting mechanism. Furthermore, the motor’s heatgeneration causes thermal expansion in the motor mounting

Table 1 Specifications of new productmechanism in equipment, which undermines the precisionof the equipment.
To overcome these challenges, we developed a compact,

Flat type with core
Items

Symbol [Unit]

high-acceleration, energy-saving linear servo motor. The
new product is a flat type linear motor with core.
In this article, we begin by showing the specifications
and appearance of the new product. Next, we describe its
structure and characteristics and present its features taking
an example of an XY cartesian robot.

2. Specifications and Appearanceof New ProductFigure 1 shows the new linear servo motor, and Table 1
shows its specifications.

Current
product

New
product

Coil model no.

−−

Magnet railmodel no.

−−DS045MC

DS050MD

Rated thrust

Fc

[N]

260

340

Maximum thrust

FP

[N]

500

630

Coil length(1)

LC

[mm]

130

145

Motor width

WM

[mm]

65

71

Motor height

HM

[mm]

48.5

48.5

DS045CC1AN DS050CD1AN

Coil mass

MC

[kg]

1.8

2.15

Magnet rail mass

Mmr

[kg/m]

3

3.5(1) Excluding the hall sensor

The new product consists of a magnet rail (stator) of
permanent magnets and a laminated armature coil (mover)facing each other across an air gap.

SANYO DENKI Technical Report No.55 May 2023

28

3. Specifications of the New ProductFigures 2 and 3 show examples of a linear servo motor
installed in equipment. The thrust of a linear servo motor is
produced in the area (thrust area S) where the armature coil(mover) and magnet rail (stator) face each other. Our current
product secured high thrust by increasing the thrust area S
in the direction of the motor width W M.
However, the increased motor width resulted in an
increase in the size and mass of the equipment as well as theamount of motor materials.
Therefore, as shown in Figure 3, the new product secured

Equipment volume [%]3.1 Structure and features
3.1.1 Improved thrust(100 being when the current product is used)

110
100

-10%

90
80
70
60
50
40
30
20
10
0

Current productNew productFig. 4 Equipment volume required for linear servo
motor installation (with the same thrust)high thrust by increasing the thrust area S rather in the
direction of the motor motion (coil length L direction) notin the motor width W M direction. This reduces the motor

3.1.2 Improved energy efficiency(reduced losses)

installation width WA to W B, resulting in increased thrust

Figure 5 shows the thrust area of the armature coilwithout significantly increasing the size of the equipment.

(mover) of an iron-core linear servo motor. Compared

Figure 4 shows a comparison, between the current andto the current product, the new product has a reduced

new products, of the equipment volume required to installend-winding, which is irrelevant to thrust, height H A bya linear servo motor to produce the same thrust. Comparedredesigning the winding around the iron core. This reduces

to the current product, the new product requires 10% lessthe end-winding volume to whole winding ratio while

space of customer equipment.

simultaneously reducing copper losses by increasing theratio of the coil conductor area over the total slot area (slot
Equipment volume increase:
High

Motor width WM
Armature coil(mover)Thrust area S

Magnet rail
(stator)fill factor).
Figure 6 shows a comparison of the end-winding volume
to whole winding ratio. In the new product, the end winding
occupies 11% less volume of the whole winding volume thanthe current product.
図2

Windings Iron core

End winding

HA

Motor materials
increasedWA

Thrust area S
increased

Equipment volume increase:
Low

Armature coil(mover)Coil length LC

Magnet rail
(stator)Motor travel range

Fig. 3 Installation exampleof new linear servo motor

29

SANYO DENKI Technical Report No.55 May 2023

Motor width WM

Motor materials
increased

WB

Thrust area S
increased

WC

Fig. 2 Installation example
of current linear servo motor(a) Current product(b) New productFig. 5 Comparison of winding structure(reduced end winding)
図3

Development of High-Acceleration, Energy-Saving SANMOTION Linear Servo Motor

A MAX = F / (M L + MC)

50: Thrust [N]

M L : Load mass [kg],
-11%

30

MC : Coil mass [kg]1220

Current product100Current productNew productFig. 6 Comparison of winding volume

Maximum acceleration AMAX[G]Volume ratio [%](End winding / whole winding)

F
40

… (1)

10

New product

8
6
4
2

3.2 Thrust density and maximum
acceleration
3.2.1 Thrust density

0

0

5

10
15
Load mass ML[kg]20

25

Fig. 8 Comparison of maximum acceleration

Figure 7 shows a comparison of thrust density. Thrust
density is the thrust per unit volume, and the greater thevalue, the higher the thrust and the more compact the linear
servo motor.(1) The new product has a redesigned motor
structure that optimizes the magnetic circuit and winding

3.3 Improved energy efficiency(reduced losses)

layout. As a result, compared to the current flat type linear

Figure 9 is the copper loss comparison between the new

servo motor with core, the new product achieves a 12%

and current products. The new product, with its reduced end

higher rated thrust density and 8% higher maximum thrust

winding volume and increased space factor, reduces losses

density.

by more than 15% compared to the current product.
This reduction in losses reduces the temperature rise

1800

1400

+8%

Current productNew productof the motor, which suppresses thermal expansion inequipment, contributing to improving the equipment
precision.

1200
1000

110

+12%

800

400
200
0

Rated thrust density

Maximum thrust density

Fig. 7 Comparison of thrust density

3.2.2 Maximum acceleration
Figure 8 shows the relationship between load mass andmaximum acceleration. Acceleration is expressed as the

Loss ratio [%]600(100 being the loss of the current product)

Thrust density [kN/m3]

1600

100
90

-18%

80
70
60
50
40
30
20
10
0

Current productNew productFig. 9 Comparison of losses (copper losses)

equation (1) below using the motor thrust and mass (movercoil mass + load mass). The new product has achieved

3.4 Thrust vs. speed characteristics

size and weight reductions through its improved thrustFig u re 10 c ompa res t he t h r u st F ver su s speed V

and thrust density. As a result, it has a higher maximum

characteristics. The new product improves thrust in all

acceleration assuming that the load mass is constant. This

operating ranges from low speed to high speed comparedcan contribute to improving equipment productivity.

to the current product thanks to the optimized windings

SANYO DENKI Technical Report No.55 May 2023

30

Figure 12 compares the thermal expansion in the upper

the current product, the new product improves thrust in

X-axis moving slider when the motor generates heat. Whenthe continuous zone, resulting in higher acceleration andthe new product is used, the upper X-axis moving slider

reduced downtime during continuous operation. This canthermal expansion can be reduced to about 1/2 of that of thecontribute to shortening equipment cycle times.

current product.

700

700

600

600

500

500

400
300
200

0

0.5

1 1.5 2 2.5
Speed V [m/s]3

Negative
direction

Point A

Armature
coil

Point C

Armature
coil

400
300

Current product100

Current productNew product

Expansion
direction

Point B

200

100
0

Positive
direction

0

0

0.5

1 1.5 2 2.5
Speed V [m/s]30

X-axismoving slider

Point A
Point B
Point C

3(b) Continuous zone(a) Instantaneous zone

X-axismoving slider New productNote: X-axis moving slider 150 × 200 × 15 mm (aluminum)

Current productNew productFig. 10 Thrust vs speed characteristics(at 200 V input)

4. Configuration Example
Figure 11 shows the new product applied to the upper
X-axis of an XY cartesian robot as an application example.
In the current product, the thermal expansion in the upper

Expansion amount ΔL[μm]Thrust F [N]Thrust F [N]and improved thrust density. In particular, compared to

20
10
0
-10

Current
product

New
product-20-30

Fig. 12 Thermal expansion in moving slider(analyzed results)

X-axis moving slider due to the motor heat undermined thepositioning precision of the equipment.
The new product suppresses heat generated from the

Figure 13 compares, between current and new products,

motor by reducing motor loss. This reduces the amount of

the effect on the lower Y-axis when the upper X-axis moving

thermal expansion that occurs in the moving slider.

slider is driven at the same acceleration. Compared to thecurrent product, the new product improves the acceleration

X-axis movable slider

X-axis(upper)Armature coilX-axis fixed baseY-axis(lower)of the lower Y-axis by reducing the volume and mass of theupper X-axis fixed base. This reduces the overall size of the
XY cartesian robot system and improves its productivity
without increasing the size of the motor for the lower Y-axis.
Table 2 shows the effect of using the new product to an XY
cartesian robot system.

Magnet rail
X-axismotion directions

Y-axismotiondirections

Y-axis fixed baseNote: Linear guide isomitted in the figure

Fig. 11 Illustration of XY cartesian robot
mechanism

31

SANYO DENKI Technical Report No.55 May 2023

110
100

-10%

90
80
70
60
50
40
30
20
10
0

Current
product(100 being when the current product is used)

120

Change made by the new product [%](100 being when the current product is used)

Change made by the new product [%]Development of High-Acceleration, Energy-Saving SANMOTION Linear Servo Motor

120

+10%

110
100

New
product(3) Contribute to downsizing and improved productivity ofcustomer equipment

90

With the reduced motor size and weight and the increased

80

thrust, the new product contributes to improving the70

productivity of equipment while minimizing the size of the60

equipment’s motor-mounting mechanism.

50
40
30

We bel ieve t hat t he new product w i l l c ont r ibute20

significantly to the improved productivity and precision of10

customer equipment.

0

Current
product(a) X-axis fixed base massNew
product(b) Y-axis acceleration

Fig. 13 Weight reduction in X-axis fixed baseand effect on Y-axis
Table 2 Benefits when new product is used in XY
cartesian robot
Current product

Reference(1) Yasushi Misawa and 2 others: “Development of Compact,
Core-equipped SANMOTION Linear Servo Motors”
SANYO DENKI Technical Report No. 37, pp. 35-38 (2014.5)(2) Hiroyuki Sato and 3 others: “Development of a compact, large
thrust, low magnetic attractive force linear servo motors”
SANYO DENKI Technical Report No. 41, pp. 35-39 (2016.5)

New productX-axisThermal expansion: Thermal expansion:(moving slider) HighLow
X-axis(fixed base)

Mass/volume: High Mass/volume: Low

Y-axis

Acceleration: Low

Acceleration: High

AuthorAkihiko Takahashi
Servo Systems Div., Design Dept. 1
Works on the development and design of linear servo motors.

5. Conclusion
In this article, we introduced the structure and featuresof our newly developed high-acceleration, energy-saving

Hiroyuki Sato
Servo Systems Div., Design Dept. 1
Works on the development and design of linear servo motors.

SANMOTION linear servo motor, as well as an example ofits application example. The features of the new product are
as follows.
(1) High thrust while being compact and lightweight(Increased thrust density)
By optimizing the motor structure and winding layout, we
improved the rated thrust density and the maximum thrust
density by 12% and 8%, respectively (compared to thecurrent product).
This enables high acceleration (high response) for theequipment.
(2) Improved energy efficiency (low losses)
By reducing the end w inding volumecoil end andimproving the space factor, we reduced losses by more than
15% (compared to the current product).
This reduces the thermal expansion that occurs in
the equipment due to the heat generated by the motor
heat, contributingand contributes to higher precision ofequipmentoperations.

SANYO DENKI Technical Report No.55 May 2023

32

New Product Introduction

Development of High-Output
SANMOTION F Stepping Drivers
Masao Mizuguchi

Shigehiro Kamada

Ryuichi Yanagisawa

Tetsuji Takizawa

Ryuta Sugiyama

Yasuyuki Katoh

Haruki Nakagawa

Yuya Kamimura

1. Introduction

equipment performance simply by replacing the driver
thanks to the compatibility with the motors of the current

SANMOTION F series stepping systems provide high-model.

torque, high-precision operation and are used in a wide

In this article, we begin by showing the appearance andrange of applications, especially for sem iconductor

specifications of the new models. Next, we introduce the

manufacturing equipment and medical equipment. To

performance and functions of the new models.

achieve higher speeds and micromachining of equipment, it
is essential to improve the performance of motor systems.
In recent years, it has become important to save energy by
improving equipment efficiency to protect the environment.
It is against this background that we developed newmodels of compact stepping drivers with dramatically

2. Product Overview
2.1 Appearance
Figure 1 shows the new models and Figure 2 shows theirexternal dimensions.

improved overall performance. The new models are

The high-power model has a thin profile and its volume

available in a high-power model with high output and highand mass are 63% and 73% smaller, respectively, than thefunctionality and a basic model compatible with our current

current model of the equivalent output. Since it can be

drivers for both 2-phase and 5-phase motors.

mounted from either the back or the bottom, it provides high

The high-power model is smaller and lighter than theflexibility, for example, it can be installed in narrow spaces

current model but has much higher torque at high speeds.

or the heat-dissipating surface can be attached closely for

It also reduces speed variations, which enables the smoothefficient heat dissipation.

operation of equipment at high speeds. In addition, it has

The basic model has the same mounting dimensions for

PC-based functions that allow advanced parameter settingseasy replacement of the current model. Through the use ofand status monitoring.

low-loss electronic components to reduce heat generation

The basic model improves torque and reduces speed

and make heat sinks thinner, it achieved a 7% reduction

variations while maintaining interface and function

in volume and 39% reduction in mass while maintaining

compatibility with the current model. It can improve thealmost the same shape as the current model.

(a) High-power model(b) Basic modelFig. 1 Appearance of new models

33

SANYO DENKI Technical Report No.55 May 2023

Development of High-Output SANMOTION F Stepping Drivers

28

20.5

3.5

2.5

85
78

3.5

5

5

3.5

25

54

52.5
30

2-ø3.57.5max.

5

64

78

8

2

3.5

3.5

2

54

(a) High-power model(b) Basic modelFig. 2 Dimensions of new models (unit: mm)

2.2 Specifications

feature higher output current and a variety of functions.

Table 1 shows the product lineup and specifications.

The high-power model has a higher output current and can

Each model has the same specifications for 2-phase andoperate at higher speeds than the basic model. The high-5-phase motors, except for the maximum output current andpower model also has PC-based functions, a preventive

microstepping resolution.

maintenance notification function, and a function to notify
a host controller of alarms.

Compared to the basic models, the high-power models

Table 1 Product lineup and specifications
Items
Maximum output current

High-power model

Basic model

2-phase5-phase2-phase5-phase

4.0 A /phase

2.8 A /phase

2.0 A /phase

1.4 A /phase

24 VDC

Input voltage
Input/Output signal

4/2

3/2

Product size [mm]85 × 20.5 × 52.5

64 × 28 × 54

60

55

Mass [g]Microstep

Protection
functions

FunctionsCompatible motor (flange) size

1/256
56 mm sq.
86 mm sq.

1/250

1/256

1/250

60 mm sq.

42 mm sq.
56 mm sq.
60 mm sq.
86 mm sq.

28 mm sq.
42 mm sq.
60 mm sq.
86 mm sq.

Low vibration mode✓✓

Excitation phase memory✓✓

Step resolution compatibility✓✓

PC-based functions✓–

Preventive maintenancenotification✓–

Voltage monitoring✓✓

Overcurrent protection✓✓

Overheat detection✓✓

Wire breakage detection✓✓

Alarm notification signal✓–

SANYO DENKI Technical Report No.55 May 2023

34

Table 2 shows the features of the new models. The
values in the table are the performance improvement
ratios compared to the current models as well as the
newly i mplement e d f u nc t ion s . F u r t her det a i l s on
the implementation are described in the subsequent

Pull-out torque [N·m]3. Featuressubsections.

Table 2 Product features

Shape
VolumeHigh-powermodel(1)Basic model(2)Thin profile,mountable on
two sides

Mounting andsize compatibility

Reduced by 63%

Reduced by 7%

Mass

Reduced by 73%

Reduced by 39%

High-speed
torque

1.5 to 2.7 times
higher

1.05 to 1.1 times
higherSpeed variation(3)Reduced to 1/4 or Reduced to 1/3 or
less
less

(4)

Efficiency

8.7% increase

5.5% increase

Preventive
maintenancenotification

Yes

No (same aspreviously)

Other
advantages

PC-basedsettings andstatus monitoring
supported

Interface andfunctional
compatibility withcurrent productmaintained(1) Comparison with current model F5PAE140P100(2) Comparison with current model BS1D200P10(3) Comparison of the average of speed variations(4) Comparison of the maximum combined efficiency of driver andmotor

Current model
New model

Max. 2.7 times
higher

500

1000

1500
2000
Speed [min-1]

2500

3000

Fig. 3 Pull-out torque characteristics of highpower model
1.6
Pull-out torque [N·m]

Items

1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0

Current model
New model

1.4
1.2
1

Max. 1.1 times
higher

0.8
0.6
0.4
0.2
0

0

100

200
300
Speed [min-1]

400

500

Fig. 4 Pull-out torque characteristics of basic model

3.1.2 Reduced speed variation
In general, stepping motors are prone to large speed
variations during low-speed rotation below 150 min -1 orduring high-speed rotation after voltage saturation. This isbecause the winding current fluctuates and resonates at thenatural frequency of the motor and equipment due to phaseswitching at low speeds and due to interference between
phase switching and the current control cycle at high speeds.
The new models have a well-balanced current flow in each

3.1 Improved overall performance
The new models can smoothly control the current passing
through the motor, achieving high torque and low vibration.

phase switching to suppress resonance and reduce speed
variation.

They monitor the current of the entire motor and optimally

Figure 5 compares speed variations of the same motor

compensate it to improve the voltage utilization ratio towhen it was operated using the basic model and a current

realize higher torque. In addition, they control to balancedriver. It shows that the basic model reduces speed

the current flow in the windings of each phase to reduce

variations at both low and high speeds.

speed variations.

3.1.1 Improved high-speed torqueFigures 3 and 4 show the pull-out torque characteristicsof the high-power model and basic model, respectively.
Compared to the current models of the same output, the pullout torque at high speeds has been increased up to 2.7 times
for the high-power model and up to 1.1 times for the basicmodel.

35

phase winding that smoothen out current variations during

SANYO DENKI Technical Report No.55 May 2023

Development of High-Output SANMOTION F Stepping Drivers

excessive or insufficient input power supply voltages, driver

Speed variation [min-1]

400
Current model
New model

350
300

overheating, motor overcurrent, and command speed errors.
In particular, it monitors motor overcurrents not only for

250
200

shorts between power cables but also for ground faults in150

the equipment housings. When it detects an abnormality, it

100

instantly cuts off the output current.

50
0When an alarm occurs, it stops the motor, notifies the host
0

100

200
300
Speed [min-1]

400

500

Fig. 5 Comparison of motor speed variation
characteristics

device with an output signal, and indicates the alarm factor
by the number of times the LED blinks.

3.3.2 Warning feature
Current models do not have a function to alert users

3.1.3 Improved efficiency

of abnormalities in input power supply voltage andReducing speed variations also improves motor efficiency

other conditions. Therefore, it was difficult to detectbecause less power is required which does not contributeabnormalities even when using the product at low margins

to torque. Furthermore, by using low-loss components, theand there were instances of alarms after shipping due tooverall efficiency of the driver and motor has been increased

environmental changes or individual differences.

by up to 8.7% for the high-power model and 5.5% for thebasic model.

To resolve these issues, the new models are designed todisplay a warning as insufficient margins of power supply
voltage and temperature before an alarm occurs. Normally,

3.2 Basic functions

warnings are indicated only by LEDs, but the high-power

The new models also inherit the low-vibration mode

model can also notify host devices using output signals.

and excitation phase memory functions of the current

Since the motor can continue to operate during a warning,models. Low-vibration mode performs smooth control byhost devices can take measures before an alarm occurs.

interpolating between command pulses in micro-steps,
which helps suppress speed variations at low speeds. The

3.4 PC-based functions

excitation phase memory function automatically saves the

H ig h-power models a re equ ipped w ith PC -based

motor excitation phase at power shutdown to prevent shaft

functions. The driver is to be connected to a PC using

vibration at the next start of excitation.

a ded icated com mu n ication conver ter. I n addition,

In addition to the above functions, the new models

SANMOTION MOTOR SETUP SOFTWARE, which has

possess 2-phase and 5-phase step resolution compatibility to

a proven track record with our servo amplifiers, is provided

facilitate the replacement of motor systems. This function

as PC software.

enables control with a standard 2-phase motor command

Connected to a PC, users can use the following functions.

resolution of 200 P/R while using a 5-phase driver and• Settings of operation parameters

motor. This allows, for example, users to change from a• Internal status monitoring

2-phase system to a 5-phase system without changing the• Preventive maintenance assistanceprogram on the host controller. This is useful for improving• Reading alarm logs

the equipment performance.

3.4.1 Settings of operation parameters
3.3 Enhanced protection and monitoring
capabilities
The new models have greatly enhanced monitoring andprotection functions that ensure safe and reliable use.

Users can set parameters related to input/output signal
functions, motor control, and preventive maintenance.
Since the parameter settings are stored in the driver’s
nonvolatile memory, once they are set, they are retained andautomatically used the next time the power is turned on.

3.3.1 Various monitoring items
At power-on, a self-diagnosis function checks the driver’s

Table 3 shows some examples of setting parameters andtheir functions.

internal power supply voltage, sensor circuit, and motor
power cable status. If it detects an abnormality, it issues analarm before exciting the motor.
During operation, the system constantly monitors for

SANYO DENKI Technical Report No.55 May 2023

36

Table 3 Setting parameters
Setting parameters

Function

Benefit

Input signals

Select from excitation off signal, step angle switching signal,
Optimizes the systemcurrent limiter signal, limit sensor signal, etc.

2 step resolution modes

Enables switching the command resolution by an input signal.

Speed command filtering

Alleviates shocks caused by acceleration and deceleration.

Electronic gear

Sets the command resolution more finely than usual.

Current-limiting value
setting

Limits motor current according to the input signal to suppress
heat generation.

Traveled distance formaintenance notification

Issues a warning and prompts for maintenance and inspection Helps preventive
when the set travel distance is reached.
maintenance

Advanced motor operation

3.4.2 Internal status monitoring
W hen developing equ ipment and troubleshooting
problems in the field, it is more efficient if the input status ofcommands and the operation status of drivers can be easily

Speedchecked.

Command position

Output current

The new models provide internal status monitoring tofacilitate device debugging. Table 4 shows some examplesof the monitored items by this function. As shown in
Figure 6, some of the monitored information can bedisplayed as an operation trace waveform. Users can checkthe timing of changes and the correlation with the othermonitoring results. By using this function, users can checkdriver input and output and its internal status without

Fig. 6 Graph of motor operation monitoringmeasuring instruments. This greatly facilitates analysis and3.4.3 Preventive maintenance assistance

troubleshooting.

Mechanical parts such as ball screws require periodic

Table 4 Monitored items

maintenance to ensure quality. However, this work can be

Monitored items

Function

inefficient because even when the mechanical parts are

Command pulse
counter

Displays the input pulse accumulative
count value (command position).

in the same device, the amount of their usage will differ

Speed

Displays the motor speed.

once, even axes that do not require maintenance will be

Input power
supply voltage

Displays the driver’s input power
voltage.

checked, which consumes time.

Driver internal
temperature

Displays the driver’s internal circuit
temperature.

t ravel d i st a nc e mon itor to m a nage t he prevent ive

Output current

Displays the motor’s output current.

maintenance periods. The monitor counts the number of

Input signal
monitoring

Displays the ON/OFF status of input
signals.

commanded for the applicable axis. The count value isdepending on the axis. If maintenance is performed all at

Therefore, the new models come with an accumulative

motor rotations and shows the total travel distance actuallyretained even if the driver’s power is cut off. In such a case, itwill be automatically restored at the next startup. From theuser’s perspective, it functions as simple accumulative travel
distance information.
When a preset distance is reached, it can issue a warningand notify the user of the need of maintenance.
It enables performing maintenance based on the amountof usage of each axis, minimizing the amount of workrequired to maintain the quality of equipment.

37

SANYO DENKI Technical Report No.55 May 2023

Development of High-Output SANMOTION F Stepping Drivers

3.4.4 Reading alarm history

Author

Users can read the log of both past and present alarms.
The alarm log records up to 15 alarms with time stamps in

Masao Mizuguchi

milliseconds. Alarms are saved even if the driver’s power is

Design Dept. 2, Servo Systems Div.
Works on the development and design of stepping drivers.

cut off. Therefore, users can investigate the causes of past
alarms by using the time stamp as a starting point.

Shigehiro Kamada

4. Conclusion

Design Dept. 2, Servo Systems Div.
Works on the development and design of stepping drivers.

I n t h i s a r t icle, we gave a n over v iew of ou r new
SANMOTION F stepping systems and described some of

Ryuichi Yanagisawa

their main features.

Design Dept. 2, Servo Systems Div.
Works on the development and design of stepping drivers.

•

The high-power model has a thin profile and reduces
volu me a nd ma ss by 63% a nd 73%, respect ively,
compared to our current model of the same power output.

Tetsuji Takizawa

Torque at high speeds was increased by 1.5 to 2.7 times,

Design Dept. 2, Servo Systems Div.
Works on the development and design of stepping drivers.

speed variations were reduced to 1/4 or less, and motor
efficiency was improved by up to 8.7%.
It also comes with PC-based functions, allowing users to

Ryuta Sugiyama

set parameters according to their equipment and check

Design Dept. 2, Servo Systems Div.
Works on the development and design of stepping drivers.

the operating status.
•

T he basic model reduces volume and mass by 7%
and 39%, respectively, while maintaining installation

Yasuyuki Katoh

compatibility with the current model.

Design Dept. 2, Servo Systems Div.
Works on the development and design of stepping drivers.

When replacing a current model with the new modelusing the same motor, torque at high speeds is increased•by 1.05 to 1.1 times, speed variations are reduced to 1/3 orHaruki Nakagawa

less, and motor efficiency is improved by up to 5.5%.

Design Dept. 2, Servo Systems Div.
Works on the development and design of stepping drivers.

Both models have greatly enhanced protection andmonitoring functions for safer use.

Yuya Kamimura
Both models are smaller and lighter than the current
models but have increased torque at high speeds andDesign Dept. 2, Servo Systems Div.
Works on the development and design of stepping drivers.

higher power output. They have reduced speed variations
compared to the current models, contributing to smaller
and lighter equipment, shorter cycle times, and smootheroperation. They are also environmentally friendly since they
reduce CO2 emissions during use and transport thanks totheir energy-saving improved efficiency and their compact
size and lightweight.
Looking ahead, we will leverage the technology wecultivated in these new models to provide faster, smoother,easier-to-use, and more efficient products that create newvalue for our customers.

SANYO DENKI Technical Report No.55 May 2023

38

List of Awarded and Nominated Engineers for the 71st
JEMA Technological Achievement Award in FY 2022
Heavy Electrical Category
Prize

Encouragement
Award

Title

Department

Name

Development of the High-Torque,
High-Efficiency, Low-Noise SANMOTION F
2-Phase 56 mm sq. Stepping Motors

Design Dept. 1,
Servo Systems Div.

Koji Nakatake, Yasushi Yoda,
Shogo Yoda, Ryo Matsuo,
Fumiharu Yamazoe

Development of ø172 × 150 × 51 ACDC Fan Design Dept.,
and Splash Proof ACDC Fan
Cooling Systems Div.

Naoki Murakami, Koji Ueno,
Naoya Ozumi,
Takashi Kawashima

Development of Safe, Reliable Holding Brake Design Dept. 1,(for AC Servo Motors)
Servo Systems Div.

Takeshi Miura, Ryota Hara,
Rie Matsuyama

Development of Compact Multi-Axis
Integrated Linear Servo Motor Unit

Design Dept. 1,
Servo Systems Div.

Yuki Onda, Satoshi Inaba,
Yoshiki Kaneko

Establishment of Automatic Gate Cutter
Technology for Servo Motor Resin Molding

Subsect. 3, Process
Engineering Sect. 1,
Production Engineering
Dept., Servo Systems Div.

Naoki Sakai,
Tetsuya Narisawa,
Manabu Takizawa

Department names are those at the time of nomination.

39

SANYO DENKI Technical Report No.55 May 2023

Major Patents■ Patents registered in FY 2022

Patent Number
Germany - 02733826
Europe - 02733826
Germany - 02848815
Denmark - 2848815
Europe - 02848815
Finland - 02848815
France - 02848815
U.K. - 02848815
Japan - 07049754

Title
SPLIT-CORE TYPE MOTOR AND METHOD
OF MANUFACTURING ARMATURE
OF SPLIT-CORE TYPE MOTOR

Philippines - 1-2016-000322

MEASUREMENT DEVICE

China - ZL201611048797.8
Korea - 102381230
Taiwan - I764894
China - ZL201710560832.2

MOTOR CONTROL APPARATUS

Taiwan - I762510

BLAST FAN

Japan - 07092471

Japan - 07108394

Toshiya Nishizawa, Haruka Sakai,
Jiro Watanabe, Masashi Yokota

MOTOR CONTROL APPARATUS
BIDIRECTIONAL AXIAL FAN DEVICE

Taiwan - I770194

Toru Takeda, Shintaro Koichi,
Kenta Matsuhashi

HOUSING OF FAN MOTOR

Philippines - 1-2016-000156

Philippines - 1-2018-000005
Taiwan - I783961
Philippines - 1-2018-000167

Inventor(s)Yuji Ide, Michio Kitahara, Toshio Hiraide
Satoshi Fujimaki, Toshiya Nishizawa,
Takashi Kawashima
Masahiro Koike, Tomoaki Ikeda,
Takahisa Toda, Yo Muramatsu,
Katsumichi Ishihara, Hikaru Urushimoto
Yuji Ide, Toshio Hiraide
Manabu Horiuchi, Mai Shimizu,
Jun Kitajima
Yuji Ide, Toshio Hiraide, Keigo Kikuchi
Yoshihisa Yamazaki, Satoshi Fujimaki,
Takashi Kawashima, Soma Araki

MOTOR
MOTOR CONTROL DEVICEMOTOR CONTROL APPARATUS

Yuji Ide, Toshio Hiraide, Michio Kitahara

COOLING FAN AUTOMATIC CONTROL SYSTEM
AND COOLING FAN AUTOMATIC CONTROLDEVICEROTATING SHAFT LINEAR MOTOR
MOTOR HOLDING BRAKE SERVICE LIFE
DETERMINATION SYSTEM,
MOTOR HOLDING BRAKE SERVICE LIFE
DETERMINATION DEVICE,
AND MOTOR HOLDING BRAKE SERVICE LIFE
DETERMINATION METHOD

Naoki Murakami, Masashi Murakami
Yuqi Tang

Hideki Netsu, Yoshiyuki Murata

POWER STORAGE SYSTEM

Mitsuaki Shioiri, Koji Nakatake,Yasushi Yoda, Zhang Hong,
Kazuhiro Yoda, Shogo Yoda
Hiroshi Yamada

FAN MOTOR APPARATUS
WITH PROTECTION COVER

Yusuke Okuda, Haruhisa Maruyama,
Yoshihisa Yamazaki

Japan - 07062512

PARALELL REDUNCANT UPS SYSTEMAND SYSTEM MONITORING METHOD USINGTHE SAME

Mieko Oi

U.S. - 11239711

ARMATURE MOLDED STRUCTURE

Manabu Horiuchi, Hiroki Sagara,
Jun Kitajima, Mai Shimizu,
Takashi Matsushita

China - ZL201811345092.1
Japan - 07039264
Japan - 07080644
Germany - 03540238
Europe - 03540238
Finland - 03540238
France - 03540238
U.K. - 03540238
Italy - 03540238
Japan - 07105584

STATOR OF ROTATING ARMATURE
AND ASSEMBLY METHOD THEREOF

SANYO DENKI Technical Report No.55 May 2023

40

Patent Number
Austria - 03675326
China - 03675326
Germany - 03675326
Europe - 03675326
Spain - 03675326
France - 03675326
Italy - 03675326
U.S. - 11489392
U.S. - 11218035
Japan - 07199220
U.S. - 11286949
Germany - 03713060
Europe - 03713060
U.S. - 11522410

Title

Inventor(s)BOBBIN STRUCTURE OF ARMATURE

Manabu Horiuchi, Hiroki Sagara,
Jun Kitajima, Mai Shimizu,
Takashi Matsushita

ARMATURE STRUCTURE
OF THREE-PHASE MOTOR
WATERPROOF BLOWER FANManabu Horiuchi, Hiroki Sagara,
Mai Shimizu, Jun Kitajima
Masaki Kodama, Toshiya Nishizawa,
Kakuhiko Hata

MOLDED STRUCTURE OF BRUSHLESSFAN MOTOR AND METHOD FOR MOLDING
BRUSHLESS FAN MOTOR

Munenori Takakuwa, Kakuhiko Hata,
Yukihiro Nagatsuka

Taiwan - I768609

ROTARY ELECTRIC MOTOR

Manabu Horiuchi, Mai Shimizu,
Takashi Matsushita, Yasushi Misawa(and Tomoyuki Suzuki from Japan
Aviation Electronics Industry, Ltd.)

Japan - 07013540

ROTOR STRUCTURE OF SYNCHRONOUS
MOTOR

Manabu Horiuchi, Keisuke Nagata

Internal Recognition: Invention Excellence Award
Awarded in May 2022
Prize

Excellence
Award

Title

Department

Name

Encoder Automatic
determination Device

Design Dept. 2, Servo Systems Div.

Masao Mizuguchi,
Ryuichi Yanagisawa

Reversible Flow Fan Frame
Structure

Design Dept., Cooling Systems Div.

Takashi Kawashima,
Soma Araki, Yoshihisa Yamazaki,
Satoshi Fujimaki

Design Dept. 2, Servo Systems Div.

Yuji Ide, Toshio Hiraide,
Masakazu Sakai

Under Operating Officer for Administration

Keigo Kikuchi

Design Dept. 2, Servo Systems Div.

Yuji Ide, Takao Oshimori,Hiroaki Koike

Detection of Motor Insulation
ResistanceMotor Controller Mounting
Structure

Internal Recognition: Manufacturing Excellence Award
Awarded in May 2022
Prize

Excellence
Award

Title
Introduction of Automatic
PCB Coating Machine andElectronic Work Procedure
Establishment of Automatic
Gate Cutter Technology
for Resin Molding

41

Department

Name

1st Subsect., Production Sect.,
4th Production Dept.,
SANYO DENKI Techno Service

Taichi Kobayashi,
Shimpei Kobayashi,
Kai Suzuki

Production Engineering Sect.,
Production Dept., Power Systems Div.

Mizuka Takahashi,
Masahiro Hoyano

Subsect. 3, Process Engineering Sect. 1,
Production Engineering Dept.,
Servo Systems Div.

Naoki Sakai, Akihiko Saito,
Masahiro Seki

SANYO DENKI Technical Report No.55 May 2023

Technical Papers Published Outside the Company
in General Technical Journals
January to December 2022
Title of Paper

Authors

Name of Journal

Feature: Product and Technology
Development of Member
Companies and the Resultsof 2022SANYO DENKI CO., LTD

DenkiJan. 2022(Electrical Appliances)

The Japan Electrical
Manufacturers’
Association (JEMA)

Development of Compact UPS
Series SANUPS E11B-Li
and SANUPS A11M-Li

Hiroshi Sakaba,
Akihiro Tsukada,
Hiroyuki Hanaoka,
Kazuya Nishizawa,
Yuhei Shoyama,
Takuya Ozawa,
Hidenori Takizawa,
Yuki Takayama

Monthly JETI

Apr. 2022

Nippon Syuppan
Seisaku Center Inc.

Smart Grid
(Technical Journal)

Apr. 2022

TAIGA Publishing Co.,Ltd.

IEEJ Technical
Report No. 1535

Sep. 2022

IEEJ (The Instituteof Electrical Engineersof Japan)Akihiro Tsukada,Development of the SANUPS E11B
Hiroshi Sakaba,Hybrid UPS
Kazuya Nishizawa

How to use linear motors
effectively

Satoshi Sugita
Joint author:
Investigating R&D
Committee on
Technology for Utilizing
Industrial Linear Drives

Issued in

Published byTechnical Papers Published Outside the Company
January to December 2022
Title of Paper

Authors

PMSM temperature estimation
method using high frequency
current controller including sine
tracking control
Simultaneous Realization
Of High-Frequency-CurrentInjection-Based Winding
Temperature Estimation
And Rotor Speed Control Using
Dual Sinusoidal Waveform Tracking
Current Control For PMSM
Simultaneous Temperature
Estimation of Winding and Magnet
of PMSM by High-FrequencyInjection into Static Coordinate

Yuji Ide, Daigo Kuraishi,
Akihiko Takahashi,
Michio Kitahara(Joint author: Nagaoka
University of Technology)

Name of Journal

Issued in

Published by

The papersof Technical Meetingon Semiconductor
Power Converter,
IEEJ

Jan. 2022

IEEJ Joint Technical
Meeting
on Semiconductor
Power Converterand Motor Drive

IEEJ Industrial
Applications
Category
Conference lecture
paper collection

Aug. 2022

IEEJ Industrial
Applications Category

Sep. 2022

IEEJ Joint Technical
Meeting
on Semiconductor
Power Converterand Motor Drive

IEEJ Joint Technical
Meeting on
Semiconductor
Power Converterand Motor Drive

SANYO DENKI Technical Report No.55 May 2023

42

Memo

43

SANYO DENKI Technical Report No.55 May 2023

55

May 2023

https://www.sanyodenki.com/

Published in Japan on May 15, 2023 by SANYO DENKI CO., LTD.
Published semi-yearly
3-33-1 Minami-Otsuka, Toshima-ku, Tokyo 170-8451, Japan
Phone +81 3 5927 1020
Publisher Nobumasa Kodama
Editorial Board Members:
Satoru Onodera
Editor-in-Chief
Yasutaka Narusawa
Managing Editor
Takashi Kobayashi
Secretariat
Shiho Tsukada
Secretariat
Risa Inamura
Secretariat
Kakuhiko Hata
Sho Matsushita
Hiroshi Sakaba
Makoto Ishida
Daigo Kuraishi
Yoshiyuki Usui
Hitoshi Yoshiike
Rieko Komine
Copyright © 2023 SANYO DENKI CO., LTD.
All rights reserved.
No part of this publication may be reproduced in any manner whatsoever without written
permission from SANYO DENKI.
All company and product names used in this publication are trademarks or registeredtrademarks of their respective companies.